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A planet is revolving in an elliptical orbit around the sun. Its closest distance from the sun is \( r \) and the farthest distance is \( R \). If the velocity of the planet nearest to the sun be \( v \) and that farthest away from the sun be \( \boldsymbol{V} \) then \( \boldsymbol{v} / \boldsymbol{V} \) is : A \( \cdot \frac{R^{2}}{r^{2}} \) B. \( \frac{r^{2}}{R^{2}} \) \( \mathbf{c} \cdot \frac{R}{r} \) D. \( \frac{r}{R} \)
3
Physics
A reversible reaction is carried out at \( 500 \mathrm{K} \) where its equilibrium constant is unity. If \( \Delta H \) at \( 500 \mathrm{K} \) is \( 4.0 k J, \) the value of \( \Delta S^{o} \) is
1
Chemistry
Mark the correct option A. The state of motion of an object is described by its speed only B. Many a time application of force does not result in a change in the state of motion of an object C. By sitting on a bicycle seat force is applied to the spring fixed to the seat of a bicycle D. All of the above
3
Physics
Assertion Degree of hydrolysis and \( p H \) of a salt \( \operatorname{say} N H_{4} C N \) is independent of concentration of \( \boldsymbol{N} \boldsymbol{H}_{4} \boldsymbol{C} \boldsymbol{N} \) Reason The solution of \( N H_{4} C N \) in water has \( \boldsymbol{p} \boldsymbol{H} \) slightly greater than \( \mathbf{7} \) 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
\( |\vec{a}+\vec{b}|^{2}-|\vec{a}-\vec{b}|^{2} \) is equal to \( \mathbf{A} \cdot 4|\vec{a}||\vec{b}| \sin (\theta) \) B . \( 4|\vec{a}||\vec{a}| \sin (\theta) \) \( \mathbf{c} \cdot \mathbf{4}|\vec{a}||\vec{b}| \cos (\theta) \) \( \mathbf{D} \cdot \mathbf{4}|\vec{a}||\vec{b}| \tan (\theta) \)
2
Maths
Which of the following fluorides of xenon is impossible? A. \( X e F_{2} \) в. \( X e F_{3} \) c. \( x e F_{4} \) D. \( X e F_{6} \)
1
Chemistry
The molecular weights of \( O_{2} \) and \( N_{2} \) are 32 and 28 respectively. At \( 15^{0} \mathrm{C} \), the pressure of \( 1 \mathrm{gm} \mathrm{O}_{2} \) will be the same as that of \( 1 \mathrm{gm} N_{2} \) in the same bottle at the temperature: A. \( -21^{0} \mathrm{C} \) B. \( -13^{0} \mathrm{C} \) \( \mathrm{c} \cdot 15^{\circ} \mathrm{C} \) D. \( 56.4^{0} \mathrm{V} \)
1
Chemistry
The earliest man-like primate was A. Ramapithecus B. Australopithecus c. Homo habitue D. Homo erectus
0
Biology
The curve satisfying \( \frac{\mathbf{d}^{2} \boldsymbol{y}}{\mathbf{d} \boldsymbol{x}^{2}}-\mathbf{4} \boldsymbol{y}^{\prime}=\mathbf{0} \) and passing through (1,0) is: A \( \cdot y=x e^{4 x} \) B . \( y=a e^{4 x} \) c. \( y=e^{4 x}-e^{4} \) D・ \( y=a\left(e^{4 x}-e^{4}\right) \)
2
Maths
Which of the following is true about Fischer Projection? A. The vertical lines are oriented away from you and the horizontal lines are oriented toward you. B. The vertical lines are oriented towards you and the horizontal lines are oriented away from you. C. Both the horizontal and vertical lines are oriented away from you. D. Both the horizontal and vertical lines are oriented towards you.
1
Chemistry
Which of the following alkaline earth metal sulphates has hydration enthalpy higher than the lattice enthalpy? A \( \cdot \operatorname{CaSO}_{4} \) в. \( B e S O_{4} \) c. \( B a S O_{4} \) D. \( \operatorname{sr} \operatorname{sO} 4 \)
1
Chemistry
If the function \( \boldsymbol{f}(\boldsymbol{x})= \) \( \left(a^{2}-3 a+2\right) \cos \frac{x}{2}+(a-1) x \) possesses critical points, then \( a \) belongs to the interval \( \mathbf{A} \cdot(-\infty, 0) \cup(4, \infty) \) B . \( (-\infty, 0] \cup[4, \infty) \) \( \mathbf{c} \cdot(-\infty, 0] \cup\{1\} \cup[4, \infty) \) D. None of these
2
Maths
If \( P \) is a point on a circle with centre \( C \) then the line drawn through \( P \) and perpendicular to CP is the tangent to the circle at the point \( P \) A. True B. False c. Either D. Neither
2
Maths
Which of the following is synthetic sweetener? A. Saccharin B. Aspartame c. Dulcin D. All of the above
1
Chemistry
The breakdown field for air is about \( 2 x \) \( \mathbf{1 0}^{6} \) volt/m. Therefore, the maximum charge that can be placed on a sphere of diameter \( 10 \mathrm{cm} \) is A \( .2 .0 \times 10^{-4} \mathrm{c} \) В. \( 5.6 \times 10^{-7} \mathrm{c} \) c. \( 5.6 \times 10^{-2} \mathrm{c} \) D . \( 2.0 \times 10^{2} \mathrm{c} \)
3
Physics
If the standard internal energy change for the reaction \( O F_{2}(g)+H_{2} O(g) \longrightarrow \) \( O_{2}(g)+2 H F(g), \) at \( 298 \mathrm{K} \) is \( x k J \) [Given standard enthalpies of formation in \( k J m o l^{-1} \) are \( O F_{2}(g)= \) \( +20 ; H_{2} O(g)=-250 \) and \( H F(g)= \) \( -270 . \) Then \( -100 x \) is
1
Chemistry
If \( \vec{a}+\vec{b}+\vec{c}=0,|\vec{a}|=3,|\vec{b}|=5,|\vec{c}|=7 \) then the angle between \( \vec{a} \& \vec{b} \) is? A \( \cdot \frac{\pi}{6} \) в. \( \frac{2 \pi}{3} \) \( c \cdot \frac{5 \pi}{3} \) D.
3
Physics
toppr Q Type your question \( A \) B. \( c \) \( D \)
1
Chemistry
Lymph does not contain A. Red blood cells B. White blood cells c. Platelets D. Both A and C
0
Biology
The mobility of hole in a semiconductor depend on A. Electric field B. Potential difference c. current D. Mass
3
Physics
\( A B C \) is an isosceles triangle such that \( A B=A C . D \) is the mid point of \( A C . A \) circle is drawn taking \( B D \) as diameter which intersects \( A B \) at point \( E \).then \( \boldsymbol{A C}=\mathbf{3 A E} \) A. True B. False
2
Maths
A ball is thrown vertically upwards with a velocity of 49 m/s. Calculate (i) The maximum height to which it rises. \( (i i) \) The total time it takes to return to the surface of the earth.
3
Physics
Two identical helium filled balloon \( \boldsymbol{A} \) and \( B \mathrm{m} \) fastened to a weight of \( 5 g \) by threads floats in equilibrium as shown in fig. Calculate the charge on each balloons, assuming that they carry equal charges
3
Physics
Any point on the \( x \) -axis is of the form \( \mathbf{A} \cdot(x, y) \) в. \( (0, y) \) c. \( (x, 0) \) D. \( (x, x) \)
2
Maths
Consider the Newmann projection formula of most stable conformation of 3-hydroxybutanal. It is stable due to: This question has multiple correct options A. minimum torsional strain B. intramolecular H bonding C. its being in the anti conformation D. all of these
1
Chemistry
Give an account on the classes reptilia and aves.
0
Biology
A woman weighing \( 63 \mathrm{kg} \) eats plum cake whose energy content is 9800 calories. If all this energy could be utilized by her, she can ascend a height of A. \( 1 m \) B. \( 66 m \) \( c \cdot 100 m \) D. \( 42 m \)
3
Physics
Let \( S \) be the infinite sum given by \( S= \) \( \sum_{n=0}^{\infty} \frac{a_{n}}{10^{2 n}}, \) where \( \left(a_{n}\right)_{n \geq 0} \) is a sequence defined by \( a_{0}=a_{1}=1 \) and \( a_{j}= \) \( 20 a_{j-1} \) for \( j \geq 2 . \) If \( S \) is expressed in the form \( \frac{a}{b}, \) where \( a, b \) are coprime positive integers, than \( a \) equals. A . 60 B. 75 c. 80 D. 81
2
Maths
\( \boldsymbol{f}(\boldsymbol{x})=\boldsymbol{x}(\boldsymbol{x}-1) \) in the interval \( [\mathbf{1}, \mathbf{2}] \) if \( \boldsymbol{f}^{\prime}(\boldsymbol{c})=\boldsymbol{f}(1) . \) Find \( c \)
2
Maths
Focal length of a convex lens is \( 10 \mathrm{cm} \) When the object is moved from \( 15 \mathrm{cm} \) to \( 25 \mathrm{cm}, \) the magnitude of linear magnification A. will increase B. will decrease c. will first increase then decrease D. will first decrease then increase
3
Physics
Find \( (-32)-(-50) \)
2
Maths
A proton and ana - particle accelerated through same voltage.The ratio of their de-broglie wavelength will be: A .1: 2 B . \( 2 \sqrt{2}: 1 \) c. \( \sqrt{2}: 1 \) D. 2: 1
3
Physics
Let \( f \) be any continuously differentiable function on \( [a, b] \) and twice differentiable on \( (a, b) \) such that \( \boldsymbol{f}(\boldsymbol{a})=\boldsymbol{f}^{\prime}(\boldsymbol{a})=\mathbf{0} \) and \( \boldsymbol{f}(\boldsymbol{b})=\mathbf{0} . \) Then This question has multiple correct options A \( \cdot f^{\prime \prime}(a)=0 \) B. \( f^{\prime}(x)=0 \) for some \( x \in(a, b) \) C \( . f^{\prime \prime}(x) \neq 0 \) for some \( x \in(a, b) \) D. \( f^{\prime \prime \prime}(x)=0 \) for some \( x \in(a, b) \)
2
Maths
Current of 10 ampere and 2 ampere are passed through two parallel wires A and B, respectively in opposite directions. If the wire \( A \) is infinitely long and the length of the wire \( \mathrm{B} \) is \( 2 \mathrm{m} \), the force on the conductor \( B \) which is situated at 10 \( \mathrm{cm} \) distance from A will be \( \mathbf{A} \cdot 8 \times 10^{-5} N \) B \( \cdot 4 \times 10^{-5} N \) c. \( 8 \pi \times 10^{-7} N \) D. \( 4 \pi \times 10^{-7} N \)
3
Physics
A small object of mass \( m, \) on the end of a light cord, is held horizontally at a distance \( r \) from a fixed support as shown. The object is then released. What is the tension in the cord when the object is at the lowest point of its swing? A. \( m g / 2 \) в. \( m g \) \( \mathbf{c} \cdot 2 m g \) D. \( 3 m g \)
3
Physics
Two particles, A and B having equal charges, after being accelerated through the same potential difference enter into a region of uniform magnetic field and the particles describe circular paths of radii \( \boldsymbol{R}_{1} \) and \( \boldsymbol{R}_{2} \) respectively. The ratio of the masses of \( A \) and \( B \) is: \( \mathbf{A} \cdot \sqrt{R_{1} / R_{2}} \) в. \( R_{1} / R_{2} \) c. \( \left(R_{1} / R_{2}\right)^{2} \) \( \mathbf{D} \cdot\left(R_{2} / R_{1}\right)^{2} \)
3
Physics
A system consists of two identical small balls of mass 2 kg each connected to the two ends of a 1 m long light rod. The system is rotating about a fixed axis through the centre of the rod and perpendicular to it at angular speed of 9 rad/s. An impulsive force of average magnitude \( 10 N \) acts on one of the masses in the direction of its velocity for \( 0.20 s . \) Calculate the new angular velocity of the system.
3
Physics
A long straight wire in the horizontal plane carries a current of \( 50 A \) in north to south direction. Given the magnitude and direction of \( B \) at a point 2.5 m east of the wire. A \( \cdot 2 \times 10^{-6} T, \) south B . \( 3 \times 10^{-6} T \), down c. \( 4 \times 10^{-6} T, \) up D. \( 6 T \), north
3
Physics
What is heavy water? \( \mathbf{A} \cdot H_{2} O^{18} \) B. \( D_{2} \), \( \mathrm{c} \cdot \mathrm{H}_{2} \mathrm{O}^{1} \) D. \$\$H_\{2]
1
Chemistry
Excretion of wastes produced during photosynthesis in plants takes place through A. Roots B. Stomata. c. stem D. Both A and B
0
Biology
Simplify: \( (a+b+c)^{2}+(a-b+c)^{2} \)
2
Maths
Which is used to produce smoke screen? A. Calcium phosphide B. zinc sulphate c. sodium carbonate D. zinc phosphide
1
Chemistry
The decomposition of a beam of white light into its constituent colours is known as: A. Scattering B. Dissemination c. Dispersion D. Angular dispersion
3
Physics
The largest subunit of prokaryotic ribosomes is A . 30s B. 40S \( c .50 s \) D. 60 s
0
Biology
In the \( X e F_{4} \) molecule, the \( X e \) atom is in the: A \( \cdot s p^{2} \) -hybridisation state B. \( s p^{3} \) -hybridisation state c. \( s p^{2} d \) -hybridized state D. \( s p^{3} d^{2} \) -hybridized state
1
Chemistry
Enthalpy of the system is given as: \( \mathbf{A} \cdot H+P V \) в. \( U+P V \) c. \( U-P V \) \( \mathbf{D} \cdot H-P V \)
1
Chemistry
n the given figure, which of the following is a line of symmetry? A. Line A B. Line B c. Line A and B D. Line
2
Maths
What is the range of the data: \( \mathbf{4 8}, \mathbf{6 5}, \mathbf{2 7}, \mathbf{2 3}, \mathbf{4 4}, \mathbf{4 1}, \mathbf{2 5}, \mathbf{7 0}, \mathbf{4 9} ? \)
2
Maths
The mean of 8 numbers is 25 if each number is multiplied by 2 the new mean will be A . 12.5 B. 25 c. 40 D. 50
2
Maths
is the stored carbohydrates in animals. A. Cellulose B. Glycogen c. starch D. Glucose E . Fructose
0
Biology
If \( y=\frac{x^{2}}{2}+\frac{1}{2} \times \sqrt{x^{2}+1}, \) then \( 2 y= \) \( x y^{\prime}, \) where \( y^{\prime} \) denotes the derivative of \( y \) w.r.t. \( \boldsymbol{x} \) A. True B. False
2
Maths
Factorise \( \$ \$ 5 x^{\wedge} 2 y-15 x y^{\wedge} 2 \$ \) A \( .2 x y(2 x-15 y) \) в. \( 5 y(x-15 y) \) c. \( 5 x y(x-3 y) \) D. \( x y(5 x-3 y) \)
2
Maths
What is the action of acidified potassium dichromate on acetaldehyde?
1
Chemistry
A capacitance of \( \left(\frac{10^{-3}}{2 \pi}\right) F \) and an inductance of \( \left[\frac{100}{\pi}\right] m H \) and \( a \) resistance of \( 10 \Omega \) are connected in series with an AC voltage source of \( 220 V, 50 H z . \) The phase angle of the circuit is A . \( 60^{\circ} \) B. \( 30^{\circ} \) \( \mathbf{c} \cdot 45^{\circ} \) D. \( 90^{\circ} \)
3
Physics
\( n \) moles of an ideal gas undergoes a process \( A \rightarrow B \) as shown in the figure. Maximum temperature of the gas during the process is: A \( \cdot \frac{3 P_{o} V_{o}}{2 n R} \) B. \( \frac{9 P_{o} V_{o}}{4 n R} \) c. \( \frac{9 P_{o} V_{o}}{2 n R} \) D. \( \frac{9 P_{o} V_{o}}{n R} \)
3
Physics
An emulsifier is a substance which: A. stabilises the emulsion B. homogenises the emulsion c. coagulates the emulsion D. accelerates the dispersion of liquid in liquid
1
Chemistry
Rewrite the following rational numbers in the simplest form: \( \frac{-44}{72} \)
2
Maths
A research satellite of mass \( 200 \mathrm{kg} \) circles the earth in an orbit of average radius \( \frac{3 R}{2}, \) where \( R \) is the radius of the earth. Assuming the gravitational pull on a mass \( 1 \mathrm{kg} \) on earth's surface to be \( 10 \mathrm{N}, \) the pull on this satellite will be: A . \( 860 \mathrm{N} \) B. 889 N c. \( 827 \mathrm{N} \) D. 798 N
3
Physics
How do chlorofluorocarbons (CFSs) enter the atmosphere and how do they affect humans? Explain.
0
Biology
In system called the star system we have 1 star kilogram \( =10^{20} k g .1 \) starmeter \( =10^{8} m, 1 \) starsecond \( = \) \( 10^{3} \)second then calculate the value of 1 joule in this system. A \( \cdot 10^{-30} \) star joule B . \( 10^{-27} \) star joule C \( .10^{-32} \) star joule D. None of these
3
Physics
Which of the following is tertiary alcohol? A. Ethyl alcohol B. Isopropyl alcohol c. Neopentyl alcohol D. 2-methyl 2-propanol
1
Chemistry
In the following, which is the cube of odd natural number: 8,64,216,343 A . 343 B. 64 \( c \cdot 216 \) D. 8
2
Maths
A charge of \( 5 \mu \mathrm{C} \) is placed at the center of a square \( A B C D \) of side \( 10 \mathrm{cm} . \) Find the work done (in \( \mu \) ) in moving a charge of \( 1 \mu C \) from \( A \) to \( B \)
3
Physics
Glycolysis cannot occur in absence of A. \( C a \) в. \( M n \) c. \( M g \) D. \( C o \)
0
Biology
When two waves of almost equal frequency \( n_{1} \) and \( n_{2} \) are produced simultaneously, then the times interval between successive maxima is A \( \cdot \frac{1}{n_{1}+n_{2}} \) в. \( \frac{1}{n_{1}}+\frac{1}{n_{2}} \) c. \( \frac{1}{n_{1}}-\frac{1}{n_{2}} \) D. \( \frac{1}{n_{1}-n_{2}} \)
3
Physics
The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? A. Yes B. No c. Yes, at certain instants D. None of the above
3
Physics
Expand the following binomial \( \left(1-\frac{1}{x}\right)^{10} \)
2
Maths
Reverberation means A. persistence of sound when intensity of sound from the source is increased B. persistence of sound when intensity of sound from the source is decreased C . persistence of sound even when source is turned off D. persistence of sound when source is moved away
3
Physics
The common oxidation state shown by Europium in their compounds is: \( A \cdot+1 \) \( B \cdot+3 \) \( c \cdot+5 \) \( D \cdot+6 \)
1
Chemistry
Two solids \( A \) and \( B \) float in water. It is observed that \( A \) floats with half of its volume immersed and B floats with \( 2 / 3 \) of its volume immersed. The ratio of their densities is A .4: 3 B. 3:4 \( c \cdot 2: 3 \) D. 3:2
3
Physics
Find the value of \( a \) for which the function \( f \) defined by \( f(x)=\left\{\begin{array}{ll}a \sin \frac{\pi}{2}(x+1) & , x \leq 0 \\ \frac{\tan x-\sin x}{x^{3}} & , x>0\end{array}\right. \) continuous at \( x=0 \)
2
Maths
Which of the following oxides dissolves in water to form a strongly acidic solution? \( \mathbf{A} \cdot N a_{2} O \) в. \( C a O \) c. \( A l_{2} O_{3} \) D. ZnO E. \( S O_{3} \)
1
Chemistry
Identify the term or substance based on the descriptions given below: Hydrocarbon containing a triple bond used for welding purposes.
1
Chemistry
A bullet of mass 125 gm leaves a rifle with a velocity of \( 500 m s^{-1} \). The rifle recoils with a velocity of \( 5 m s^{-1} \). Find the mass of the rifle. \( A \cdot 100 \mathrm{kg} \) B. 12.5 kgg \( c \cdot 1.25 \mathrm{kg} \) D. 125 kg
3
Physics
Which of the following statement is incorrect about xenon trioxide? A. It can be prepared by hydrolysis of \( X e F_{4} \) B. It can be prepared by hydrolysis of \( X e F_{6} \) C. It is a non volatile solid. D. It's aqueous is slightly basic.
1
Chemistry
One girl student uses the liquid compound to remove nail paint from her nail. The liquid compound removes the nail paint from her nail. Give the name of this compound. A . Acetic acid B. Formalin c. Ethanol D. Propanone
1
Chemistry
From a group of 2 men and 3 women two persons are selected. Describe the sample space of the experiment. If \( \boldsymbol{E} \) is the event in which one man and one woman are selected, then which are the cases favourable to \( \boldsymbol{E} \) ?
2
Maths
The maximum probability of finding electron in the \( d_{x y} \) orbital is: A. along with \( x \) - axis B. along the \( y \) -axis c. at an angle of 45 from the \( x \) and \( y \) axis D. at an angle of 90 from the \( x \) and \( y \) axis
1
Chemistry
A stone falls freely from rest from a height \( h \) and it travels a distance \( \frac{9 h}{25} \) in the last second. The value of h is : A . \( 145 \mathrm{m} \) B. 100 \( m \) c. \( 122.5 \mathrm{m} \) D. 200 m
3
Physics
A particle is moving in a circle of radius \( 4 \mathrm{cm} \) with constant speed of \( 1 \mathrm{cm} / \mathrm{s} \) Find the time period of the particle.
3
Physics
A 0.004 M solution of \( N a_{2} S O_{4} \) is isotonic with a \( 0.010 \mathrm{M} \) solution of glucose at same temperature. The apparent degree of dissociation of \( N a_{2} S O_{4} \) is: A . \( 25 \% \) B. \( 50 \% \) c. \( 75 \% \) D. \( 85 \% \)
1
Chemistry
In an unbiased \( n \) -p junction electrons diffuse from n-region to p- region because A. electrons travel across the junction due to potential difference B. electrons concentration in n region is more as compared to that in p-region c. holes in p-region attract them. D. only electrons move from n- to p- region and not the vice-versa.
3
Physics
Two thick plates having same charges (same charge density \( \sigma \) ) are placed side by side. Consider the case of infinite plate. Find the difference between the electric field present between the plate and remaining space of the plate, \( (\varepsilon=\text { permittivity }) \) A \( \cdot \frac{\sigma}{\varepsilon} \) в. \( 2 \frac{\sigma}{\varepsilon} \) c. \( \frac{\sigma}{2 \varepsilon} \) D.
3
Physics
What is the maximum capacity of a normal human eye to see small objects? A. 10,000 micrometer B. 10 micrometer c. 100 micrometer D. 1000 micrometer
3
Physics
The strongest fundamental force in nature is A. Electromagnetic force B. Strong nuclear force c. weak nuclear force D. gravitational force
3
Physics
Prove that, \( \left(^{2 n} C_{1}\right)^{2}+2 \cdot\left(^{2 n} C_{1}\right)^{2}+ \) 3. \( \left(^{2 n} C_{3}\right)^{2}+\ldots .+2 n .\left(^{2 n} C_{2 n}\right)^{2}= \) \( \frac{(4 n-1) !}{\{(2 n-1) !\}^{2}} \)
2
Maths
The figure shows a source (a battery) with an emf \( E \) of \( 12 V \) with an internal resistance \( r \) of \( 2 \Omega \) and an external resistance of \( 4 \Omega \) is added to complete the circuit. What are the voltmeter and ammeter readings?
3
Physics
A battery of \( 10 \mathrm{V} \) and internal resistance \( 0.5 \Omega \) is connected across a variable resistance R. The value of \( R \) for which the power delivered in its maximum state, is equal to :- A \( .0 .5 \Omega \) в. \( 1 \Omega \) c. \( 1.5 \Omega \) D. \( 2.0 \Omega \)
3
Physics
Calcium superphosphate, sodium nitrate and ammonium sulphate are used: A. in refrigerators B. air conditioners c. to increase the yield of fruits, vegetables and other crops D. invertors
1
Chemistry
Can you draw a triangle which has exactly three lines of symmetry? Sketch a rough figure.
2
Maths
Write the function of the following part of human eye. Cornea.
3
Physics
The two p orbitals are deflected by an angle of: A \( \cdot 45^{\circ} \) B . \( 180^{\circ} \) \( c .90^{\circ} \) D. \( 120^{\circ} \)
1
Chemistry
Suicide bags of cells are A. Endoplasmic reticulum B. Lysosome c. Golgi bodies D. Vacuoles
0
Biology
Write the formula of the compound of iodine which is obtained when conc. \( \boldsymbol{H} \boldsymbol{N} \boldsymbol{O}_{3} \) oxidises \( \boldsymbol{I}_{2} \)
1
Chemistry
Drying of a shirt in the sun is an example of changes.
1
Chemistry
Which of the following is a fat soluble vitamin? \( A \cdot \) Vitamin A B. Vitamin C c. Pyridoxine D. Vitamin B - complex
1
Chemistry
a. Both (A) and (B) are resolvable.
1
Chemistry
A source of constant potential difference is connected across a conductor having irregular cross- section as shown in figure. Then :- A. Electric field intensity at \( P \) is greater than at \( Q \). B. Rate of electric current crossing per unit area of cross section at \( P \) is less than that at \( Q \) C. The rate of generation of heat per unit length at \( P \) is greater than that at \( Q \). D. Mean kinetic energy of free electron at \( P \) is greater than that at \( Q \)
3
Physics
Dobereiner classified elements into groups based on their properties. The number of elements in each group is
1
Chemistry
Assertion STATEMENT 1 (Assertion)- Absolute value of H cannot be determined Reason STATEMENT 2 (Reason)- \( \Delta \boldsymbol{H}_{(g)}= \) \( \boldsymbol{\Delta} \boldsymbol{E}_{(\boldsymbol{g})}+\boldsymbol{\Delta} \boldsymbol{n}_{(g)} \boldsymbol{R} \boldsymbol{T} \) A. Statement 1 is True, statement 2 is True; statement 2 is a correct explanation for statement 1 B. Statement 1 is True, statement 2 is True; statement 2 is not a correct explanation for statement 1 c. Statement 1 is True, statement 2 is False. D. Statement 1 is False, statement 2 is True
1
Chemistry