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f \( P Q=P R, \) Show that \( P S>P Q \)
| 2 |
Maths
|
\( 20 \% \) of a mans salary is paid as rent, 60 \( \% \) are his living expenses and \( 10 \% \) is paid in LIC. If he spends the remaining
Rs. 3,000 on education of the children, his salary is
A. \( R s .9,000 \)
B. \( R s .90,000 \)
c. \( R s .35 .000 \)
D. Rs.30, 000
| 2 |
Maths
|
Two lens of focal length \( f_{1} \) and \( f_{2} \) are kept in contact coaxially. The resultant power of combination will be
A. \( \frac{f_{1} f_{2}}{f_{1}-f_{2}} \)
в. \( \frac{f_{1}+f_{2}}{f_{1} f_{2}} \)
c. \( f_{1}+f_{2} \)
D. \( \frac{f_{1}}{f_{2}}+\frac{f_{2}}{f_{1}} \)
| 3 |
Physics
|
A neutral atom of fluorine has a mass
number of 19 and an atomic number of
9. How many neutrons does it have?
A . 10
B. 9
c. 19
D . 28
E. It is impossible to determine from the information given
| 1 |
Chemistry
|
If \( \omega \) is cube root of unity, then \( \boldsymbol{\Delta}=\left|\begin{array}{cccc}\boldsymbol{x}+\mathbf{1} & \boldsymbol{\omega} & \boldsymbol{\omega}^{2} \\ \boldsymbol{\omega} & \boldsymbol{x}+\boldsymbol{\omega}^{2} & \mathbf{1} \\ \boldsymbol{\omega}^{2} & \boldsymbol{1} & \boldsymbol{x}+\boldsymbol{\omega}\end{array}\right|= \)
\( \mathbf{A} \cdot x^{3}+1 \)
B. \( x^{3}+\omega \)
c. \( x^{3}+\omega^{2} \)
D. \( x^{3} \)
| 2 |
Maths
|
The common oxidation state of
elements of lanthanide series is
\( A \cdot+1 \)
\( B \cdot+3 \)
\( c \cdot+4 \)
\( D \cdot+6 \)
| 1 |
Chemistry
|
Identify a possible graph for function
given by \( f(x)=-(x-2)^{3}+1 \)
A. graph a
B. graph b
c. grpah c
D. grpah d
| 2 |
Maths
|
The standard reduction potential of \( \boldsymbol{C u}^{2+} / \boldsymbol{C u} \) couple is \( \mathbf{0 . 3 4} \mathrm{V} \) at \( \mathbf{2 5}^{\mathbf{0}} \mathrm{C} \)
Calculate the reduction potential at
\( \boldsymbol{p} \boldsymbol{H}=\mathbf{1 4} \) for this couple.
\( \operatorname{Given} \boldsymbol{K}_{s p} \) of \( \boldsymbol{C u}(\boldsymbol{O H})_{2}=\mathbf{1 . 0} \times \mathbf{1 0}^{-\mathbf{1 8}} \mathbf{)} \)
| 1 |
Chemistry
|
The hybridization of \( X e \) -atom in \( X e O_{6}^{4-} \) is same with:
This question has multiple correct options
A \( \cdot x e \) in \( X e F_{6} \)
B. Te in \( T e O_{6}^{6} \)
\( \mathbf{c} \cdot \operatorname{Pin} P F_{6}^{-} \)
\( \mathbf{D} \cdot \sin S i F_{6}^{2} \)
| 1 |
Chemistry
|
The main cause of water depletion is
A. Over-pumping groundwater
B. Water Pollution
C. Global warming
D. None of the above
| 0 |
Biology
|
Which among the following statements is incorrect with regards to the features of population in India?
A. Birth rate per thousand is 20.97 as per Census 2011
B. According to Census 2011, the death rate per thousand stands at 7.48
C. As per Census 2011 , there are 940 females for every 1000 males
D. The density of population in India is 297 people per square kilometre
| 0 |
Biology
|
For an ideal solution, the correct option
is :
A \( \cdot \Delta_{\operatorname{mix}} S=0 \) at constant T and \( \mathrm{P} \)
B. \( \Delta_{\operatorname{mix}} V \neq 0 \) at correct T and P
C. \( \Delta_{\operatorname{mix}} H=0 \) at constant \( \mathrm{T} \) and \( \mathrm{P} \)
D. \( \Delta_{\text {mix}} G=0 \) at constant T and \( P \)
| 1 |
Chemistry
|
Evaluate \( -\mathbf{3 5}+\boldsymbol{x}=\mathbf{3 9} \)
| 2 |
Maths
|
\( R \) is a relation defined in \( R \times T \) by \( (a, b) R(c, d) \) iff \( a-c \) is an integer and
\( b=d . \) The relation \( R \) is
A. an identity relation
B. an universal relation
c. an equivalence relation
D. None of these
| 2 |
Maths
|
Matter has both
A. mass, volume
B. mass, weight
C. life, particle
D. None of the above
| 1 |
Chemistry
|
An investigator interviewed 100
students to determine their preferences for the three drinks milk coffee and tea.
He reported the following, 10 students had all the three drinks, 20 had milk
and coffee, 30 had coffee and tea \( , 25 \)
had milk and tea, 12 had milk only. 5
had coffee only, 8 had tea only. The
number of students that did not take
any of the three drinks is.
| 2 |
Maths
|
\( 420 J \) of energy supplied to \( 10 g m \) of water will raise its temperature by
\( \mathbf{A} \cdot 1^{\circ} C \)
в. \( 4.2^{\circ} \mathrm{C} \)
\( \mathrm{c} \cdot 10^{\circ} \mathrm{C} \)
D. \( 42^{\circ} \mathrm{C} \)
| 3 |
Physics
|
Given name for the following substituted alkanes:
| 1 |
Chemistry
|
For which colour is the fringe width minimum?
A . violet
B. red
c. green
D. yellow
| 3 |
Physics
|
A first-order reaction which is \( 30 \% \)
complete in 30 minutes has a half-life period of:
A .24 .2 min
B. 58.2 min
c. 102.2 min
D. 120.2 min
| 1 |
Chemistry
|
A block of mass \( m \) slides down an
inclined plane of slope angle \( \theta \) with constant velocity. Now, same block is
projected up an inclined plane with an
initial velocity \( u \). If the coefficient of
kinetic friction between the block and
the plane is \( \mu, \) the distance up to which the block will rise up the plane, before coming to rest is :-
\( ^{\mathrm{A}} \cdot \frac{u^{2} \mu}{2 g \sin \theta} \)
в. \( \frac{u^{2} \mu}{2 g \cos \theta} \)
c. \( \frac{u^{2}}{4 g \sin \theta} \)
D. \( \frac{u^{2}}{4 g \cos \theta} \)
| 3 |
Physics
|
A ball is thrown horizontally from a point \( 100 \mathrm{m} \) above the ground with a speed of \( 200 \mathrm{m} / \mathrm{s} \). Find (a) the time it takes to reach the ground,
(b) the horizontal distance it travels before
reaching the ground,
(c) the velocity (direction and magnitude) with which it strikes the ground.
| 3 |
Physics
|
\( \lim _{x \rightarrow \frac{\pi}{2}}\left(\lim _{x \rightarrow \infty} \cos \frac{x}{2} \cos \frac{x}{2^{2}} \cos \frac{x}{2^{3}} \ldots \ldots \cos \frac{x}{2^{n}}\right) \)
equals to
| 2 |
Maths
|
Photosynthesis is an oxidationreduction process, the material that gets oxidised is
\( A \cdot C O_{2} \)
B. NADP
\( c \cdot H_{2} 0 \)
D. PGAA
| 0 |
Biology
|
A long solenoid has 200 turns per \( \mathrm{cm} \) and carries a current \( i . \) The magnetic
field at its centre is \( 6.28 \times \) \( 10^{-2} W b m^{-2} . \) Another solenoid has 100
turns per \( c m \) and it carries a current \( \frac{i}{3} \) The value of the magnetic field at its
centre :
A . \( 1.05 \times 10^{-4} \mathrm{Wbm}^{-2} \)
B. \( 1.05 \times 10^{-2} \mathrm{Wbm}^{-2} \)
c. \( 1.05 \times 10^{-5} \mathrm{Wbm}^{-2} \)
D. \( 1.05 \times 10^{-3} \mathrm{Wbm}^{-2} \)
| 3 |
Physics
|
Root pressure does not take an active part in the ascent of sap because
A. It is not found in all the plants and water can rise in the absence of root
B. It is seen during most favourable periods like spring or rainy season.
c. It is never found to exist in the plants
D. Both A and B
| 0 |
Biology
|
Determine the nature of roots of the
following quadratic equation:
\( 2 x^{2}+5 x+5=0 \)
| 2 |
Maths
|
When does a moving charged particle
not experience any force while moving through a uniform magnetic field?
| 3 |
Physics
|
\( \int \frac{\log (x+1)-\log x}{x(x+1)} d x \) equals
| 2 |
Maths
|
A screw factory has two machines, the
M1, which is old, and does \( 75 \% \) of all the
screws, and the M2, newer but small,
that does \( 25 \% \) of the screws. The \( \mathrm{M} \)
does \( 4 \% \) of defective screws, while the
M2 just does \( 2 \% \) of defective screws. If we choose a screw at random: what is
the probability that it turns out to be
defective?
A. 0.035
в. 0.045
c. 0.015
D. None of these
| 2 |
Maths
|
Which of these belong to cartilaginous
fish?
\( A \)
\( A \)
B. B
\( c \cdot c \)
\( D \)
| 0 |
Biology
|
The value of \( K_{c} \) for the reaction \( \boldsymbol{A}+ \) \( B \leftrightharpoons C+D \) was found to be 0.0997 at a
certain temperature. If the initial
concentrations of \( A \) and \( B \) are both \( 1 M \)
What are the equilibrium concentrations of \( \boldsymbol{A}, \boldsymbol{B}, \boldsymbol{C} \) and \( \boldsymbol{D} \) ?
| 1 |
Chemistry
|
Which of the following electrons have little influence on the properties of elements?
A . outer electrons
B. electrons have no influence on properties of elements
c. inner electrons
D. Both A and C
| 1 |
Chemistry
|
Vitamin D is also known as:
A. growth vitamin
B. sunshine vitamin
c. reproductive vitamin
D. ascorbic acid
| 1 |
Chemistry
|
Two wires of same material and length
but cross-sections in the ratio 1: 2 are
used to suspend the same loads. The extensions in them will be in the ratio
A .1: 2
B . 2: 1
c. 4: 1
D. 1: 4
| 3 |
Physics
|
\( \sqrt{\mu_{0} \epsilon_{0}} \) has the dimensions
\( \mathbf{A} \cdot\left[M^{0} L T^{-1}\right] \)
В . \( \left[M^{0} L^{-1} T\right] \)
\( \mathbf{c} \cdot\left[M^{2} L^{3} T^{-1}\right] \)
D \cdot \( \left[M^{-1} L^{3} T^{-2}\right] \)
| 3 |
Physics
|
The total pressure at the bottom of the
container is
\( ^{A} \cdot\left(\frac{H}{2}+\frac{L}{4}\right) d g \)
B. \( P_{0}+\left(\frac{3 H}{2}+\frac{L}{2}\right) d g \)
\( ^{\mathrm{c}} P_{0}+\left(H+\frac{L}{4}\right) d g \)
D \( P_{0}+\left(\frac{3 H}{2}+\frac{L}{4}\right) d g \)
| 3 |
Physics
|
An urn contains 4 red and 7 blue balls.
Find the probability of getting Blue balls
| 2 |
Maths
|
If \( m \) parallel lines in a plane are
intersected by a family of \( n \) parallel lines, the number of parallelograms than can be formed is
A \( \cdot \frac{1}{4} m n(m-1)(n-1) \)
в. \( \frac{1}{2} m n(m-1)(n-1) \)
c. \( \frac{1}{4} m^{2} n^{2} \)
D. None of these
| 2 |
Maths
|
What is the valency of the element with atomic number 35 and \( 15 ? \)
| 1 |
Chemistry
|
In a string the speed of wave is \( 10 \mathrm{m} / \mathrm{s} \)
and its frequency is 100 Hz. The value of
the phase difference at a distance 2.5
cm will be :
\( \mathbf{A} \cdot \pi / 2 \)
в. \( \pi / 8 \)
c. \( 3 \pi / 2 \)
D. \( 4 \pi \)
| 3 |
Physics
|
Riboflavin vitamin is:
\( A \cdot B_{1} \)
\( B \cdot B_{2} \)
\( c \cdot B_{12} \)
D. B \( _{6} \)
| 1 |
Chemistry
|
Evaluate
\( \lim _{x \rightarrow 0} \frac{\sqrt{2}-\sqrt{1+\cos x}}{\sin ^{2} x} \)
| 2 |
Maths
|
A current of 3 A is flowing in a linear conductor having a length of \( 40 \mathrm{cm} . \) The conductor is placed in a magnetic field
of strength 500 gauss and makes an
angle \( 30^{\circ} \) with the direction of the field.
It experiences a force of magnitude
\( \mathbf{A} \cdot 3 \times 10^{-4} N \)
B. \( 3 \times 10^{-2} N \)
c. \( 3 \times 10^{2} N \)
D. \( 3 \times 10^{4} N \)
| 3 |
Physics
|
If the corresponding sides of two triangles are proportional, then the two triangles are similar by which test
\( A \cdot \) SSS test
B. SAS test
C. AAA test
D. ASA test
| 2 |
Maths
|
Chromosome theory of \( X Y \) sex determination was proposed by.
A. Henking
B. Wilson and Stevens
c. Johannsen
D. Punnet
| 0 |
Biology
|
Atom with atomic radii and
ionisation potential tends to gain electrons
A. large, high
B. large, low
c. small, low
D. small, high
| 1 |
Chemistry
|
Dependent Population refers to -
A. Children and Old Persons
B. Employed Persons
C. Both (a) and (c)
D. Neither
(a) nor \( (b) \)
| 0 |
Biology
|
Assertion
Bohr had to postulate that the electrons in stationary orbits around the nucleus
do not radiate.
Reason
According to classical physics all moving electrons radiate.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Assertion is incorrect but Reason is correct
| 1 |
Chemistry
|
Which vitamin deficiency in human blood increases blood clotting time?
| 1 |
Chemistry
|
Three resistors of each \( 1 \Omega \) are joined in the form of a triangle.The value of resistance between an the corners:
A \( \cdot \frac{2}{3} \Omega \)
B . \( \frac{3}{2} \Omega \)
\( c \cdot \frac{3}{4} \Omega \)
D. 3\Omega
| 3 |
Physics
|
The given figure shows development of
an embryo that undergoes two phases \( A \) and B. Select the correct option
regarding it
of division loose capacity to divide
A. A-Geometric phase
B - Arithmetic phase
B. A - Arithmetic phase,
B - Geometric phase
c. A - Arithmetic phase
B - Exponential phase
D. A - Exponential phase, B - stationary phase
| 0 |
Biology
|
Calculate geometric mean for the following values 1,3,5,7,10,12
A. 1.82386
в. 2.82386
\( c .3 .82386 \)
D. 4.82386
| 2 |
Maths
|
The chemical formula of 2 -chloro
pentane is:
A \( \cdot C_{5} H_{5} C l \)
B. \( C_{5} H_{11} C l \)
\( \mathbf{c} \cdot C_{4} H_{9} C l_{2} \)
D. \( C_{5} H_{9} C l \)
| 1 |
Chemistry
|
Assertion
Ethyne is more reactive than ethane.
Reason
Due to presence of triple bond, electron
density is very high so it is more
reactive
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
| 1 |
Chemistry
|
\( \boldsymbol{f}: \boldsymbol{R} \rightarrow \boldsymbol{R}, \boldsymbol{f}(\boldsymbol{x})=\boldsymbol{3} \boldsymbol{x}+\boldsymbol{2} \)
\( \boldsymbol{g}: \boldsymbol{R} \rightarrow \boldsymbol{R}, \boldsymbol{g}(\boldsymbol{x})=\boldsymbol{6} \boldsymbol{x}+\mathbf{5} \)
for the given functions \( \left(g o f^{-1}\right)(10)= \)
A . 21
B . 29
\( c \cdot 7 \)
D.
| 2 |
Maths
|
What is the arrangement of root zones
starting from root tip?
A. Root cap, cell division, cell enlargement and cell maturation
B. Root cap, cell division, cell maturation and cell enlargement
C. Cell division, cell maturation, cell enlargement and root cap
D. Cell division, cell enlargement, cell maturation and root cap
| 0 |
Biology
|
State the Krichhoff's law of electric
network. In the figure shown \( \boldsymbol{P}= \) \( 2 \mathrm{ohms} Q=4 \mathrm{ohms}, R=4 \mathrm{ohms} \) and
\( S=2 \) ohms. Resistance between \( C \) and
\( D \) is 1 ohms. Find the current through
each resistance
| 3 |
Physics
|
Find the centre and radius of the circle
\( x^{2}+y^{2}+6 x+8 y-96=0 \)
| 2 |
Maths
|
Which of the following is a hormonereleasing IUD?
A. LNG-20
B. Multiload-375
c. Lippes loop
D. \( c u-7 \)
| 0 |
Biology
|
A ball is released from the top of a tower
of height \( h \) meters. It takes \( T \) second to
reach the ground. What is the position
of the ball in \( T / 3 \) second?
A. \( 2 h / 9 \) meter from the ground
B. \( 7 h / 9 \) meter from the ground
c. \( 8 h / 9 \) meter from the ground
D. \( 17 h / 18 \) meter from the ground
| 3 |
Physics
|
If one of the roots of \( a x^{2}+b x+c=0 \) is
\( \mathbf{7}+\sqrt{\mathbf{2}} \) then find the other root
A. \( -7+\sqrt{2} \)
B. \( 7-\sqrt{2} \)
c. \( -7-\sqrt{2} \)
D. Cannot be determined
| 2 |
Maths
|
\( \left|\begin{array}{cc}\mathbf{2} & \mathbf{3} \\ \mathbf{4} & \mathbf{4}\end{array}\right|+\left|\begin{array}{cc}\boldsymbol{x} & \mathbf{3} \\ \boldsymbol{y} & \mathbf{1}\end{array}\right|=\left|\begin{array}{cc}\mathbf{1 0} & \mathbf{6} \\ \mathbf{8} & \mathbf{5}\end{array}\right|, \) then \( (\mathbf{x}, \mathbf{y})= \)
A \( \cdot(4,8) \)
\( B \cdot(8,4) \)
\( c \cdot(1,2) \)
\( D \cdot(2,4) \)
| 2 |
Maths
|
Two moles of an ideal gas expended isothermally and reversibly from 1 litre to 10 litre at 300 K. The enthalpy change (in kJ) for the process is:
A . 11.4
B. -11.4
\( c \cdot 0 \)
D. 4.8
| 1 |
Chemistry
|
Express 3825 as a product of prime factors
| 2 |
Maths
|
\( * \) is a binary operation on \( Z \) such that:
\( \boldsymbol{a} * \boldsymbol{b}=\boldsymbol{a}+\boldsymbol{b}+\boldsymbol{a} \boldsymbol{b} \)
The solution of \( (3 * 4) * x=-1 \) is
A . 1
B. -
\( c \cdot 4 \)
D. 3
| 2 |
Maths
|
Evaluate the following:
\( \tan ^{-1}(\tan 2) \)
| 2 |
Maths
|
If \( f(x)=\cos (\log x), \) then \( f(x) f(y)- \)
\( \frac{1}{2}\left[f\left(\frac{x}{y}\right)+f(x y)\right] \) is equal to
\( A \)
B. \( \frac{1}{2} \)
\( c .-2 \)
\( D \)
| 2 |
Maths
|
Autoignition temperature is the highest temperature at which substance can burn.
A. True
B. False
| 1 |
Chemistry
|
\( A 5 \mu F \) capacitor is connected to a 200 \( \mathrm{V}, 100 \mathrm{Hz} \) ac source. The capacitive
reactance is:
\( \mathbf{A} \cdot 212 \Omega \)
B. \( 312 \Omega \)
c. \( 318 \Omega \)
D. \( 412 \Omega \)
| 3 |
Physics
|
A light string passes over a frictionless
pulley. To one of its ends a mass of \( 6 k g \) is attached to the other end a mass of
10 \( k g \) is attached. The tension of the thread is:
A . \( 24.5 N \)
B . \( 2.45 N \)
\( c .79 N \)
D. \( 73.5 N \)
| 3 |
Physics
|
From kinematics equations of motion
is
A \( \cdot S=u t-\frac{1}{2} a t^{2} \)
B . \( S=u t+\frac{1}{2} a t^{2} \)
c. Both (a) and (b)
D. None of these
| 3 |
Physics
|
Dihydrogen gas used in Habers process is produced by reacting methane from natural gas with high temperature steam. The first stage of two stage reaction involves the formation of \( C O \)
and \( H_{2} . \) In second stage, \( C O \) formed in
first stage is reacted with more steam in water gas shift reaction,
\( \boldsymbol{C O}(\boldsymbol{g})+\boldsymbol{H}_{2} \boldsymbol{O}(\boldsymbol{g}) \rightleftharpoons \boldsymbol{C} \boldsymbol{O}_{2}(\boldsymbol{g})+ \)
\( \boldsymbol{H}_{2}(\boldsymbol{g}) \)
If a reaction vessel at \( 400^{\circ} \mathrm{C} \) is charged
with an equimolar mixture of \( C O \) and
steam such that \( \boldsymbol{P}_{C O}=\boldsymbol{P}_{\boldsymbol{H}_{2}} \boldsymbol{O}= \)
4.0bar, what will be the partial pressure
of
\( \boldsymbol{H}_{2} \) at equilibrium? \( \boldsymbol{K}_{\boldsymbol{P}}=\mathbf{0 . 1} \) at \( \mathbf{4 0 0}^{\circ} \boldsymbol{C} \)
| 1 |
Chemistry
|
\( \operatorname{In} \operatorname{both} N i(C O)_{4} \) and \( \left[N i C l_{4}\right]^{-2}, N i \) is
\( s p^{3} \) hybridised.
A. True
B. False
| 1 |
Chemistry
|
The surface of cartilage is surrounded by irregular connective tissue, called as
A. Periostium
B. Perichondrium
c. Lacunae
D. osteoclast
| 0 |
Biology
|
A capacitor of \( 10 \mu F \) is connected to a
\( \mathbf{1 0} \boldsymbol{V} \) cell. The maximum charge on the
capacitor will be:
A. \( 1 \mu C \)
B. \( 10 \mu C \)
c. \( 100 \mu C \)
D. \( 1000 \mu C \)
| 3 |
Physics
|
There are three solids made up of aluminium, steel and wood, of the same shape and same volume. Which of them would have highest inertia?
A. Steel.
B. Aluminium
c. wool
D. None of these
| 3 |
Physics
|
The ground water level increases due to
(recharging/discharging) of
wells.
| 1 |
Chemistry
|
The \( p H \) of \( 10^{-7} M N a O H \) is:
A . 7.01
B. between 7 and 8
c. between 8 and 9
D. greater than 10
| 1 |
Chemistry
|
Match the Column I with Column II.
Column Column A nn II \( \mathrm{O} \mathrm{h}_{\mathrm{m}} \)
\( \mathrm{i}_{\mathrm{S}} \)
\( \mathrm{applin}_{\mathrm{d}} \) Whe the the
(A)
\( (p) \)
metals applicable
to The
(B) Ohm's law
is not
applicable
to
\( (q) \)
grr
reer greater
resistivity
(C) alloys have \( \quad \) (r) \( \quad \) diodes,
electrolytes,
semiconductors
\( A \cdot A-r, B-q, C-p \)
B. \( A-p, B-r, C-q \)
C. \( A-r, B-p, C-q \)
D. A-q, B-r, C-p
| 3 |
Physics
|
A parrot is sitting on the floor of a wire cage which is being carried by a boy,
starts flying. The boy will feel that the
box is now
A. heavier
B. lighter
C. shows no change in weight
D. lighter in the beginning and heavier later
| 3 |
Physics
|
Which of the following statements is
not true?
A. The ratio of the mean speed of the RMS speed is independent of the temperature
B. The square of the mean speed of the molecules is equal to the mean square speed at a certain temperature
C. Mean kinetic energy of the gas-molecules at any given temperature is independent of the mean speed
D. The difference between RMS speed and mean speed at any temperature for different diminishes as larger and yet larger molar masses are considered
| 1 |
Chemistry
|
What type of forces act between the ions during the formation of a crystal of ionic compound?
| 1 |
Chemistry
|
\( \int x \sec ^{2} x d x \)
| 2 |
Maths
|
Which of the following has/have zero average value in a plane electromagnetic wave?
A. Both magnetic and electric fields
B. Electric fields only
c. Magnetic field only
D. None of these
| 3 |
Physics
|
How much heat is required to raise the
temperature of 150 g of iron from \( 20^{\circ} C \) to \( 25^{\circ} \mathrm{C} \) ? (Specific heat of iron
\( \left.480 J k g^{-1} o C^{-1}\right) \)
A . 350
B. 345 J
c. 360 J
D. 330 J
| 3 |
Physics
|
Two charges \( +6 \mu C \) and \( -4 \mu C \) are
placed \( 15 c m \) a part as shown. At what
distances from \( A \) to its right, the
electrostatic potential is zero?
\( \mathbf{A} \cdot 4,9,60 \)
B. 9,15,45
\( \mathrm{C} \cdot 20,30,40 \)
D. \( 9,45, \) infinity
| 3 |
Physics
|
The maximum force of friction which
just allows one body to slide upon another body is called
| 3 |
Physics
|
Reindeers are made to pull the sledges in artic regions.The force involved in this activity is
A. Frictional force
B. Gravitational force
c. Magnetic force
D. Muscular force
| 3 |
Physics
|
Which one of the following is/are correct statement(s) for physisorption? This question has multiple correct options
A . It is a reversible process
B. It requires less heat of adsorption
c. It requires activation energy
D. It takes place at low temperature
| 1 |
Chemistry
|
In a circle whose radius is 10 inches, a
chord is 6 inches from the center. What
is the length of the chord?
A. 4 inches
B. 6 inches
c. 8 inches
D. 16 inches
| 2 |
Maths
|
The mean value of 6,9,12 is
| 2 |
Maths
|
\( S(s)+O_{2}(g) \rightarrow S O_{2}(g) \quad \Delta H^{\circ}= \)
\( -297 k J \)
\( 2 S O_{2}(g)+O_{2}(g) \rightarrow \)
\( 2 S O_{3}(g) \quad \Delta H^{\circ}=-198 k J \)
Given the above thermochemical
reactions, what is the heat of reaction
for the formation of \( S O_{3}(g) \) provided
below?
\( \boldsymbol{S}(\boldsymbol{s})+\boldsymbol{3} / 2 \boldsymbol{O}_{2}(\boldsymbol{g}) \rightarrow \boldsymbol{S} \boldsymbol{O}_{3}(\boldsymbol{g}) \)
A \( .-495 \mathrm{kJ} \)
B . -396 k
c. -198 k
D . +99
E . +198 k
| 1 |
Chemistry
|
A 0.2 molar solution of formic acid is
\( 3.2 \% \) ionised, its ionisation constant is:
A. \( 9.6 \times 10^{-3} \)
B. \( 2.1 \times 10^{-4} \)
c. \( 1.25 \times 10^{-6} \)
D. \( 2.1 \times 10^{-8} \)
| 1 |
Chemistry
|
The monomer when treated with Zieglar
Natta catalyst undergo polymerisation. The polymer obtained when monomeric unit used is:
\( C^{l} \)
\( C H_{2}=C^{\prime}-C H=C H_{2} \)
A. neoprene
B. stilbene
c. styrene
D. chloropicrin
| 1 |
Chemistry
|
Find the negative of cube root of
-2744000:
| 2 |
Maths
|
Early colonisers of bare and barren
areas helps in
succession
| 0 |
Biology
|
Show that all rectangles inscribed in a fixed circle square has maximum area.
| 2 |
Maths
|
Assertion
\( P \) orbital is dumb-bell shaped.
Reason
Electron present in p orbital can have any one of the three values of the magnetic quantum number, i.e 0,+1 or
-1
Read the above assertion and reason
and choose the correct option regarding
¡t.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
| 1 |
Chemistry
|
There are 7 men and 8 women. In how
many ways a committee of 4 members
can be made such that a particular woman is always included
| 2 |
Maths
|
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