text
stringlengths 1
4.32k
| label
int64 0
3
| label_text
stringclasses 4
values |
|---|---|---|
A long solenoid has magnetic field strength of \( 3.14 \times 10^{-2} \mathrm{T} \) inside it
when a current of \( 5 A \) passes through
¡t. The number of turns in 1 m length of the solenoid is
A. 1000
в. 3000
\( c .5000 \)
D. 10000 | 3 | Physics |
Derive the equation of the locus of a point equivalent from the points (1,-2,3) and (-3,4,2) | 2 | Maths |
Percentage of precipitation that can be stored in dams of India is
A . 10
B. 18
\( c \cdot 43 \)
D. 55 | 0 | Biology |
According to Bohr's theory of hydrogen atom, which of the following is quantized for an electron?
A. Acceleration
B. Velocity
c. Angular momentum
D. Angular acceleration | 1 | Chemistry |
If \( M N \) is a straight line on a cartesian
plane. The co-ordinates of \( \mathrm{N} \) are (12,13)
and \( M N=9 \) units. Find the co-
ordinates of \( \mathrm{M} \)
A \( .(21,13) \)
B. (12,22)
c. (12,4)
D. (3,13) | 2 | Maths |
The heat of hydrogenation of one double bond in cyclohexene is \( 28.6 \mathrm{kcal} \) mol \( ^{-1} \) and the heat of hydrogenation of benzene to cyclohexane is \( 50 \mathrm{kcal} \) mol \( ^{-1} \). What will be the resonance
stabilization energy of benzene?
A . 28.6 kcal mol-1
B. 55.0 kcal mol-1
c. 85.8 kcal \( m o l^{-1} \)
D. 35.8 kcal mol-1 | 1 | Chemistry |
A dye absorbs a photon of wavelength lambda and re-emits the same energy
into two photons of wavelengths of \( \lambda_{1} \)
and \( \lambda_{2} \) respectively. The wavelength
lambda is related with \( \lambda_{1} \) and \( \lambda_{2} \) as:
\( A \cdot \lambda=\frac{\lambda_{1}+\lambda_{2}}{\lambda_{1} \lambda_{2}} \)
B. \( \lambda=\frac{\lambda_{1} \lambda_{2}}{\lambda_{1}+\lambda_{2}} \)
\( c \cdot \lambda=\frac{\lambda_{1}^{2} \lambda_{2}^{2}}{\lambda_{1}+\lambda_{2}} \)
D. \( \lambda=\frac{\lambda_{1} \lambda_{2}}{\left(\lambda_{1}+\lambda_{2}\right)^{2}} \) | 1 | Chemistry |
The value of \( [\sin x]+[1+\sin x]+2+ \)
\( [\sin x]+3+[\sin x] \) in \( \left(\pi, \frac{3 \pi}{2}\right] \) is
\( \mathbf{A} \cdot \mathbf{0} \)
B. 1
\( c \cdot 2 \)
D. 3 | 2 | Maths |
A straight wire of 0.3 m carrying a current of \( 2 \mathrm{A} \) in the downward direction
is placed in a magnetic field of \( 0.1 \mathrm{T} \) as shown in the figure. Find out the magnitude of the force on the wire?
A . \( 0.06 N \)
B. 2.0 N
c. \( 6.7 \mathrm{N} \)
D. 0.15N
E. 0.015N | 3 | Physics |
Figure here shows the vertical cross-
section of a vessel filled with a liquid of
density \( \rho \)
The normal thrust per unit area on the
walls of the vessel at point \( P \) as shown
will be :
A \( . \) hog
в. Нр р
\( \mathbf{c} \cdot(H-h) \rho g \)
D \( \cdot(H-h) \) pgcos | 3 | Physics |
If \( b>a, \) and \( I=\int_{a}^{b} \sqrt{\frac{x-a}{b-x}} d x, \) then \( I \)
equals
A \( \cdot \frac{\pi}{2}(b-a) \)
в. \( \pi(b-a) \)
c. \( \pi / 2 \)
D. \( 2 \pi(b-a) \) | 2 | Maths |
A dinoflagellate with nematocysts is
A. Nematodinium
B. Ceratium
c. Gonyaulax
D. symbodinium | 0 | Biology |
A gas undergoes expansion in such a
manner that its p-V diagram plot is a
downward sloping straight line as shown in he figure below. What happens to the temperature during the process?
A. It increases first then decreases
B. It decreases first then increases
c. It continuously decreases
D. Data insufficient | 3 | Physics |
The value of \( \left(8^{-25}-8^{-26}\right) \) is
A \( \cdot 7 \times 8^{-25} \)
В. \( 7 \times 8^{-26} \)
c. \( 8 \times 8^{-26} \)
D. None of these | 2 | Maths |
Calculate the electric potential at the
center of the square in figure. | 3 | Physics |
Find the difference between \( \boldsymbol{P}(\boldsymbol{x})= \)
\( \boldsymbol{x}^{4}-\boldsymbol{3} \boldsymbol{x}^{2}+\mathbf{4} \boldsymbol{x}+\mathbf{5}, \boldsymbol{g}(\boldsymbol{x})=\boldsymbol{x}^{2}+\mathbf{1}-\boldsymbol{x} \) | 2 | Maths |
Diamond is the hardest allotrope of
carbon. Give reason for its hardness?? | 1 | Chemistry |
If the sum of two numbers is 11 and
sum of their cubes is \( 737, \) find the sum
of their squares. | 2 | Maths |
A pulse is a wave:
A. Of high duration
B. Of short duration
C. Which travels in vacuum only
D. Which travels in solids only | 3 | Physics |
A swimmer swims in still water at a
speed \( =5 k m / h . \) He enters a \( 200 m \)
wide river, having river flow speed \( = \)
\( 4 k m / h r \) at point \( A \) and proceeds to
swim at an angle of \( 127^{\circ} \) with the river flow direction. Another point B is located
directly across \( A \) on the other side. The
swimmer lands on the other bank at a
point \( C, \) from which he walks the
distance \( \mathrm{CB} \) with a speed \( =3 k m / h r \)
The total time in which he reaches from
\( A \) to \( B \) is
A . 5 minutes
B. 4 minutes
c. 3 minutes
D. none | 3 | Physics |
The \( p H \) at which \( M g(O H)_{2} \) begins to precipitate from a solution containing \( \mathbf{0 . 1 0} \boldsymbol{M} \boldsymbol{M} \boldsymbol{g}^{\mathbf{2 +}} \) ions. \( \boldsymbol{K}_{\boldsymbol{s} \boldsymbol{p}_{M g(O H)_{2}}}=\mathbf{1 0}^{-\mathbf{1 1}} \) is | 1 | Chemistry |
The foot of an elephant has an area of \( 275 c m^{2} . \) If the mass of elephant is
\( 2200 k g, \) find the pressure exerted by the elephant on the ground, \( (g=10 m \)
\( s^{-2} \) ). | 3 | Physics |
Assertion
The total momentum of an isolated
system of particles is conserved.
Reason
The law of conservation of momentum
follows from the second and third law of
motion.
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 | 3 | Physics |
If \( \boldsymbol{x}=\boldsymbol{y} \cos \frac{\boldsymbol{2} \boldsymbol{\pi}}{\mathbf{3}}=\boldsymbol{z} \cos \frac{\boldsymbol{4} \boldsymbol{\pi}}{\boldsymbol{3}}, \) then \( \boldsymbol{x} \boldsymbol{y}+ \)
\( y z+z x \) is equal to
\( \mathbf{A} \cdot-4 x^{2} \)
B.
\( c \cdot 1 \)
D. | 2 | Maths |
A copper ring is suspended by a thread
in a vertical plane. If one end of a magnet is brought horizontally towards the ring in plane of ring as shown, the
ring will
B. not change its position
c. move away from the magnet.
D. first move towards and then move away from the magnet | 3 | Physics |
Q Type your question
The and
of incidence and reflection in
accordance with the laws of reflection?
\( A \)
B.
\( c \)
\( D \) | 3 | Physics |
A compound (A) when reacted with ammonia gave (B),(B) when treated with bromine and caustic powder produced (C), (C) on treatment with
\( N a N O_{2} \) and \( H C l \) at \( 0^{\circ} \mathrm{C} \) and then
produce ortho-cresol. Compound (A) is:
A. o-chlorotoluene
B. o-toluic acid
c. m-toluic acid
D. n-bromotoluene | 1 | Chemistry |
When a force is applied on a wire of uniform cross-sectional area \( 3 \times \)
\( 10^{-6} m^{2} \) and length \( 4 m, \) the increase in
length is 1 \( m m . \) Energy stored in it will
be \( \left(Y=2 \times 10^{11} N / m^{2}\right) \)
A . \( 6250 J \)
в. 0.177 Л
c. \( 0.075 J \)
D. \( 0.150 J \) | 3 | Physics |
\( O_{2}^{+} P t F_{6}^{-} \) (an orange coloured compound) was prepared and thus,
formation of compound \( \boldsymbol{X} \boldsymbol{e}^{+} \boldsymbol{P} \boldsymbol{t} \boldsymbol{F}_{\boldsymbol{6}}^{-} \)
was feasible based on ionisation energy of Xe (which is very similar to that of \( \boldsymbol{O}_{2} \)
)
If true enter 1 , else enter 0 | 1 | Chemistry |
Assertion
Ionic compounds are bad conductors of
electricity.
Reason
In ionic compounds mobile ions exists.
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 |
For a gaseous reaction the rate equation is \( \boldsymbol{v}=\boldsymbol{k}[\boldsymbol{A}][\boldsymbol{B}] . \) If the volume of
the gaseous system is suddenly reduced to \( 1 / 3 \) of initial volume. The rate would become:
A. \( 1 / 9 \) times
B. 9 times
c. \( 1 / 6 \) times
D. 6 times | 1 | Chemistry |
Three charges are placed at the vertices
of an equilateral triangle of side 'a' as shown in the following figure. The force experienced by the charge placed at the
vertex \( A \) in a direction normal to \( B C \) is
A \( \cdot Q^{2} /\left(4 \pi \epsilon_{0} a^{2}\right) \)
B \( \cdot-Q^{2} /\left(4 \pi \epsilon_{0} a^{2}\right) \)
\( c . \) Zero
D. \( Q^{2} /\left(2 \pi \epsilon_{0} a^{2}\right) \) | 3 | Physics |
The function(s) of oxytocin is/are to :
A. stimulate the release of milk from the mother's mammary glands when her baby is nursing.
B. cause the uterus to contract
c. induce labor
D. all of the above | 1 | Chemistry |
Express the following percentages as
ratios in the reduced form.
\( 0.64 \% \) | 2 | Maths |
Teeth are the only part of the digestive
system that physically breaks down food.
A. True
B. False | 0 | Biology |
A Ge specimen is doped with Al. The
concentration of acceptor atoms is \( \sim \) \( 10^{21} \) atoms \( / m^{3} . \) Given that the intrinsic
concentration of electron-hole pairs is
\( 10^{19} / m^{3} . \) The concentration of electrons in the specimen is:
\( \mathbf{A} \cdot 10^{17} / m^{3} \)
B . \( 10^{15} / m^{3} \)
c. \( 10^{4} / m^{3} \)
D. \( 10^{2} / m^{3} \) | 3 | Physics |
Which of the following ions has the maximum magnetic moment?
\( \mathbf{A} \cdot M n^{+2} \)
B. \( F e^{+2} \)
\( c \cdot T i^{+2} \)
D. \( C r^{+2} \) | 1 | Chemistry |
Ideal solutions doesn't obey Roult's law.
A. True
B. False | 1 | Chemistry |
The chief ore of aluminium is :
A. bauxite
B. cryolite
c. alunite
D. feldspar | 1 | Chemistry |
Which of the following is not true about
transition metals?
A. They are diamagnetic substances
B. They are paramagnetic substances
C. They can form complexes
D. They can show variable oxidation states | 1 | Chemistry |
Ordered pairs \( (a, 3) \) and \( (5, x) \) are equal the values of \( a \) and \( x \) are
A .2 and 4
B. 3 and 6
c. 5 and 3
D. 1 and -1 | 2 | Maths |
There is a regular bus service between towns \( A \) and \( B \), with a bus leaving towns A and B every \( T \) minutes. A cyclist
moving with a speed of \( 20 \mathrm{kmh}^{-1} \) in the direction \( A \) to \( B \) notices that a bus goes
past him every 18 mins in his direction
and every 6 mins in the opposite direction. What is the period \( \boldsymbol{T} \)
of bus service?
A. 9 minutes
B. 12 minutes
c. 15 minutes
D. 18 minutes | 3 | Physics |
Oxygen in expired air
A . \( 10 \% \)
B . 16\%
c. \( 19 \% \)
D. 4\% | 0 | Biology |
Identify the product obtained when
following acid prolonged heating | 1 | Chemistry |
Find the slope of line which passes through the point (7,11) and (9,15) | 2 | Maths |
Water flows at the rate of \( 10 \mathrm{m} \) per min from cylindrical pipe \( 5 \mathrm{mm} \) in diameter How long will it take to fill up a conical vessel whose diameter at the base is 40
\( \mathrm{cm} \) and depth \( 24 \mathrm{cm} ? \)
A. 48 min 15 sec
B. 51 min 12 sec
c. 52 min 1 sec
D. 55 min | 2 | Maths |
Assertion
If \( \boldsymbol{f}(\boldsymbol{x})=(\boldsymbol{x}-\mathbf{1})(\boldsymbol{x}-\mathbf{2})(\boldsymbol{x}-\mathbf{3}), \) then
area enclosed by \( |\boldsymbol{f}(\boldsymbol{x})| \) between the
lines \( x=2.2, x=2.8 \) and \( x- \) axis is equal to \( \int_{2.2}^{2.8}(x-1)(x-2)(x-3) d x \)
Reason
\( (x-1)(x-2)(x-3) \leq 0 \) for all \( x \in \)
[2.2,2.8]
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 | 2 | Maths |
Which of the following does not come under antimicrobial?
A. Antibiotic
B. Tranquilizer
c. Disinfectant
D. Antiseptic | 1 | Chemistry |
The type of resource obtained from Biosphere that contains life is.
A . Abiotic resource
B. Human made resource
c. Nonrenewable resource
D. Biotic resource | 3 | Physics |
Fill in the blanks with suitable words:
Light waves travel in the form of
waves | 3 | Physics |
Electrons are particles of negligible mass carrying unit negative charge.
A. True
B. False | 1 | Chemistry |
Write the equation of tangent at (1,1) on the curve \( 2 x^{2}+3 y^{2}=5 \) | 2 | Maths |
Which of the following points are the vertices of an equilateral triangle?
A \( \cdot(a, a),(-a,-a),(2 a, a) \)
В \( \cdot(a, a),(-a,-a),(-a \sqrt{3}, a \sqrt{3}) \)
c. \( (\sqrt{2} a,-a),(a, \sqrt{2} a),(a,-a) \)
D. \( (0,0),(a,-a),(a, \sqrt{2} a) \) | 2 | Maths |
What is meant by heredity? | 0 | Biology |
Blood clotting requires
\( A \cdot N a^{+} \) and \( K^{+} \)
B. \( \mathrm{Na}^{+} \) and prothrombin
C \( \cdot \mathrm{Na}^{+} \) and thromboplastin
D. \( \mathrm{Ca}^{++} \) and thromboplastin | 0 | Biology |
Which plays a major role in the formation of complex compound?
A. Transition metal
B. Lanthanides \& Actinoides
c. Representative elements
D. p-Block elements | 1 | Chemistry |
Form the differential equation of the family of circles having centre on y-axis and radius 3 units. | 2 | Maths |
Show that \( 1.272727 \ldots=1 . \overline{27} \) can be
expressed in the form \( \underline{\boldsymbol{p}} \) \( \overline{\boldsymbol{q}} \) | 2 | Maths |
If \( \boldsymbol{A} * \boldsymbol{B}=\boldsymbol{A} \cap \boldsymbol{B} \) on \( \boldsymbol{P}(\boldsymbol{X}), \) then identify
for \( * \) is \( _{-}--_{-}---(X \neq \phi) \)
\( A \cdot \phi \)
B. \( X \)
\( c \cdot U \)
D. | 2 | Maths |
The equations representing the given
graph is
A. \( 7 x+2 y=11 ; y-2 x=3 \)
B. \( 2 x+7 y=11 ; 5 x+(35 y / 2)=25 \)
c. \( 3 x-7 y=10 ; 8 y-6 x=4 \)
D. \( 3 x-4 y=1 ; 3 x-4 y x+2=0 \) | 2 | Maths |
Divide \( 2 x^{3}-9 x^{2}+10 x \) by \( (2 x+5) \) and
also verify the result. | 2 | Maths |
The equilibrium constant for the given
reaction: \( \boldsymbol{S O}_{3}(\boldsymbol{g}) \rightleftharpoons \boldsymbol{S} \boldsymbol{O}_{2}(\boldsymbol{g})+ \)
\( \frac{1}{2} O_{2}(g) ; K_{c}=4.9 \times \)
\( 10^{-2} m o l^{1 / 2} l i t r e^{-1 / 2} \)
What is the value of \( K_{c} \) for the reaction:
\( 2 S O_{2}(g)+O_{2}(g) \rightleftharpoons 2 S O_{3}(g) ? \)
A. 416 litre \( m o l^{-1} \)
B . \( 2.40 \times 10^{-3} \) litre \( \mathrm{mol}^{-1} \)
c. \( 9.8 \times 10^{-2} \) litre mole\( ^{-1} \)
D. \( 4.9 \times 10^{-2} \) litre \( m o l^{-1} \) | 1 | Chemistry |
The given figure shows a parallelogram
\( A B C D \) with area \( 324 \mathrm{cm}^{2} . P \) is a point
in \( A B \) such that \( A P: P B=1: 2 \)
Find the area of \( \triangle \boldsymbol{A} \boldsymbol{P} \boldsymbol{D} \)
\( \mathbf{A} \cdot 34 \mathrm{cm}^{2} \)
B. \( 44 \mathrm{cm}^{2} \)
c. \( 24 \mathrm{cm}^{2} \)
D. \( 54 \mathrm{cm}^{2} \) | 2 | Maths |
In which of the following reactions, does a non-metal act as a reducing agent?
A. \( \operatorname{SiO}_{2}+2 C \rightarrow S i+2 C O \)
в. \( A l N+3 H_{2} O \rightarrow A l(O H)_{3}+N H_{3} \)
\( \mathbf{c} \cdot 2 M g+N_{2} \rightarrow M g_{3} N_{2} \)
D. \( H g C l_{2}+2 K I \rightarrow H g I_{2}+2 K C l \) | 1 | Chemistry |
If four resistances are connected as
shown in the fig. between \( A \) and \( B \), the
effective resistance is:
A . \( 3 \Omega \)
B. \( 1 \Omega \)
c. \( 2.4 \Omega \)
D. 25 | 3 | Physics |
Difluorodiphenyl trichloroethane (DDFT) is a/an:
A. refrigerant
B. fungicide
c. plastic
D. antiseptic | 1 | Chemistry |
The de-Broglie wavelength associated with the motion of earth orbiting around the sun at a speed of \( 3 \times 10^{6} \mathrm{m} / \mathrm{s} \) is:
[mass of earth \( \left.6 \times 10^{24} K g\right] \)
A . \( 3.68 \times 10^{-65} \mathrm{m} \)
В . \( 3.68 \times 10^{-56} \mathrm{m} \)
c. \( 4.76 \times 10^{-65} \mathrm{m} \)
D. \( 4.76 \times 10^{-56} m \) | 1 | Chemistry |
A semiconductor at \( 0 K \) behaves as :
A. conductor
B. insulator
c. super conductor
D. extensive semiconductor | 3 | Physics |
Assuming the complete dissociation of HCl and lead salt, calculate how much
\( \mathrm{HCl} \) is added to \( 0.001 \mathrm{m} \) lead salt
solution to just precipitate when
saturated with \( H_{2} S . \) The concentration
of \( \boldsymbol{H}_{2} \boldsymbol{S} \). The concentration of \( \boldsymbol{H}_{2} \boldsymbol{S} \) is \( \boldsymbol{0 . 1} \)
\( \mathbf{M} \) | 1 | Chemistry |
Which of the following alkenes is the most stable on account of maximum
hyperconjugation?
\( \mathbf{A} \cdot\left(C H_{3}\right)_{3} C C H=C H_{2} \)
в. \( C H_{3} C H=C H_{2} \)
c. \( \left(C H_{3}\right)_{2} C H C H=C H_{2} \)
D. \( C H_{4} C H_{2} C H=C H_{2} \) | 1 | Chemistry |
A satellite is revolving around earth in a
circular orbit. The radius of orbit is half
of the radius of theorbit of moon.
Satellite will complete one revolution in.
A \( \cdot 1 / 2^{3 / 2} \) lunar month
B . \( 1 / 2^{2 / 3} \) |unar month
C. \( 2^{3 / 2} \) lunar month
D. \( 2^{2 / 3} \) lunar month | 3 | Physics |
Which of the following compounds would be predicted to have the highest melting point?
A \( \cdot C S_{2} \)
в. \( H I \)
c. \( H_{2} \)
D. \( H_{2} O \)
E . \( M g O \) | 1 | Chemistry |
The distance between the lines \( y= \)
\( 2 x+4 \) and \( 3 y=6 x-5 \) is equal to
A .
B. \( 3 / \sqrt{5} \)
c. \( \frac{17 \sqrt{5}}{15} \)
D. \( \frac{17}{\sqrt{3}} \) | 2 | Maths |
A sum of Rs. 24000 is borrowed for \( 1 \frac{1}{2} \) years at the rate of interest \( 10 \% \) per
annum compounded semiannually. What is the compound interest \( (x) ? \)
A \( . x> \) Rs. 3000
B. Rs. 3000 < \( x< \) Rs. 4000
c. Rs. \( 4000<x<5000 \)
D. \( x> \) Rs. 5000 | 2 | Maths |
f \( n(A)=1 \) and \( n(S)=13, \) then find \( \boldsymbol{P}(\boldsymbol{A}) \) | 2 | Maths |
Given \( A \leftrightharpoons B . K_{f} \) is the equilibrium
constant and \( K_{b} \) is the equilibrium constant for backward reaction. Find
the equilibrium constant \( \boldsymbol{K} \)
A. \( K_{f} / K_{b} \)
в. \( K_{b} / K_{f} \)
\( \mathbf{c} \cdot K_{b} \times K_{f} \)
D. \( K_{b}+K_{f} \) | 1 | Chemistry |
If the height of cylinder increases from 8 inches to 12 inches, then its volume
increases from \( 72 \pi \) to \( V \). Find the value
of \( \boldsymbol{V} \)
\( \mathbf{A} \cdot 76 \pi \)
в. \( 108 \pi \)
\( c .328 \pi \)
D. \( 576 \pi \) | 2 | Maths |
Which of the following option best describe the hydrogen economy?
A. Using dihydrogen in an efficient manner
B. Dihydrogen is carried and stored in the form of liquid or gas
c. Addition of dihydrogen to the reactant
D. Both (a) and (b) | 1 | Chemistry |
Which one of the following is not the
correct statement?
A. Chemisorption is reversible in nature.
B. Chemisorption takes place at high temperature
c. Chemisorption depends on the nature of gas.
D. chemisorption requires activation energy | 1 | Chemistry |
If the \( z x \) -plane divides the line segment joining (1,-1,5) and (2,3,4) in the ratio \( p: 1, \) then \( p+1= \)
A \( \cdot \frac{1}{3} \)
B. 1: 3
\( c \cdot \frac{3}{4} \)
D. \( \frac{4}{3} \) | 2 | Maths |
Gold is chosen by Rutherford for his \( \alpha \)
ray scattering experiment because:
A. gold has high malleability
B. gold has high ductility
c. gold has high density
D. gold is the least reactive element | 3 | Physics |
Assertion
Snow is better insulator than ice.
Reason
Snow contain air packet and air is good insulator of heat.
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 | 3 | Physics |
Which of the following is organometalic compound
A. Methyl lithium
B. Lithium methoxide
c. Lithium dimethyl amide
D. Lithium acetate | 1 | Chemistry |
Among the following, the species with the highest bond order is:
\( A \cdot O_{2} \)
B . \( F_{2} \)
\( c \cdot O_{2}^{+} \)
D. \( F_{2}^{-} \) | 1 | Chemistry |
What are semiconductors? Give
examples. | 3 | Physics |
A die is throw once. Find the probability
of getting
(1)an even number
(2)a number less than 5
(3)a number greater than 2
(4)a number between 3 and 6
(5)a number other than 3
(6)the number 5 | 2 | Maths |
Draw a plot showing the variation of (i) electric field (E) and
(ii) electric
potential (V) with the distance r due to a point charge \( Q \) | 3 | Physics |
If \( \sin y=x \sin (a+y), \) then show that
\( \frac{\boldsymbol{d} \boldsymbol{y}}{\boldsymbol{d} \boldsymbol{x}}=\frac{\sin ^{2}(\boldsymbol{a}+\boldsymbol{y})}{\sin \boldsymbol{a}} \) | 2 | Maths |
If \( z \) be a complex number satisfying
\( z^{4}+z^{3}+2 z^{2}+z+1=0, \) then find the
value of \( |\vec{z}| \) | 2 | Maths |
\( \int_{0}^{\pi / 2} f(\sin 2 x) \sin x d x= \)
\( K \int_{0}^{\pi / 2} f(\cos 2 x) \cos x d x \) where \( k \)
equals to
A . 2
B. 4
\( c \cdot \sqrt{2} \)
D. \( 2 \sqrt{2} \) | 2 | Maths |
\( \delta_{j} \) | 1 | Chemistry |
A coin is tossed twice, the probability of getting head both times is
A \( \cdot \frac{1}{2} \)
B. \( \frac{1}{4} \)
\( c \cdot \frac{3}{4} \)
D. | 2 | Maths |
An enzyme absent in mitochondrial ETS
is
A. FeS protease
B. Glucose 6-phosphate dehydrogenase
c. NADH dehydrogenase
D. cytochrome c-oxidase | 0 | Biology |
Write balanced chemical equations involved in the following reactions:
(a) Fluorine gas reacts with water
(b) Phosphine gas is absorbed in copper sulphate solution. | 1 | Chemistry |
Differentiate between Uniform and non-
Uniform motion | 3 | Physics |
Soaps are sodium salts of :
A. mineral acids
B. fatty acids
\( \mathbf{C} \). bases
D. carbonic acid | 1 | Chemistry |
Express as centimeter (cm) using
decimals:
175 mm | 2 | Maths |
The figure shows velocity-time graph of
a stone thrown vertically upwards till it
comes back to the ground. Find the net
displacement of the stone.
\( A \cdot 0 m \)
B. \( 160 m \)
\( c .80 m \)
D. \( 100 m \) | 3 | Physics |
Two particle of equal mass \( m \) and
charge \( q \) are placed at a distance of
16cm. They do not experience any force.
The value of \( \frac{\boldsymbol{q}}{\boldsymbol{m}} \) is :
A. \( \sqrt{\frac{\pi \varepsilon_{0}}{G}} \)
в. \( L \)
c. \( \sqrt{\frac{G}{\pi \varepsilon_{0}}} \)
D. \( \sqrt{4 \pi \varepsilon_{0} G} \) | 3 | Physics |
Hardening of oil is done by:
A. dehydrogenation
B. hydrogenation
c. dehydrohalogenation
D. dehydration | 1 | Chemistry |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.