On boiling with concentrated \(\text{HBr}\), phenyl ethyl ether will give:

Solute - Solvent combination for a solution of camphor in nitrogen gas.

Match the complex species given in List-l with the possible isomerism given in List-ll:

List-l Complex species	List-ll Isomerism
(A) \(\left[ Co \left( NH _3\right)_4 Cl _2\right]^{+}\)	(I) optical
(B) cis- \(\left[ Co ( en )_2 Cl _2\right]^{+}\)	(II) ionization
(C) \(\left[ Co \left( NH _3\right)_5\left( NO _2\right)\right] Cl _2\)	(III) coordination
(D) \(\left[ Co \left( NH _3\right)_6\right]\left[ Cr ( CN )_6\right]\)	(IV) geometrical

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A solution of \(\text{AgSO}_4\) is electrolysed for 30 minutes with a current of 5 amperes. What is the mass of silver deposited? (Given At. Mass of Ag = 108 g/mol)

The one which is a covalent green oil is:

Match List-I and List-II

List-I	List-II
A. Phosphine	I. Catches fire in air
B. Chlorine water	II. Smoke screen
C. White phosphorus	III. Crown structure
D. Sulphur monoclinic and rhombic	IV. Bleaching agent

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Read the passage carefully and answer the questions
The speed at which a chemical reaction takes place is called the rate of reaction. The rate of reaction depends on various factors like concentration of the reactants, temperature, etc. The relation between the rate of reaction and the concentration of reacting species is represented by the equation r = k[A]^x[B]^y, where x and y are the order of the reaction with respect to the reactants A and B, respectively. The overall order of the reaction is x + y. The rate of reaction can also be increased by the use of a catalyst which provides an alternate pathway of lower activation energy. It increases the rate of forward and backward reaction to an equal extent. It does not alter the Gibbs energy of the reaction.
The rate of a gaseous reaction is given by r = k[A] [B]. If the volume of the reaction vessel is suddenly reduced to (1/4)th of its initial value, the reaction rate relating to the initial rate will become

The energy of a photon of wavelength 1 \( \text{\AA} \) is
(Given: \( h = 6.63 \times 10^{-34} \text{ J s} \))

Which of the following are true statements ?
(A) Electric field due to a single charge is cylindrically symmetric.
(B) Gauss's theorem holds good for any closed surface.
(C) Electric field due to an electric dipole is spherically symmetric.
(D) The field due to a uniformly charged spherical shell is zero at all points inside the shell.
Choose the correct answer from the options given below :

Paleontological evidences for evolution refers to :

Choose the correct answer
A. \(\sin ^{-1} x+\cos ^{-1} x=\frac{\pi}{2}, x \in[-1,1]\)
B. \(\cos ^{-1}(-x)=-\cos ^{-1} x, x \in[-1,1]\)
C. \(\sin ^{-1} x+\cos ^{-1} x=\frac{\pi}{2}, x \in(-1,1)\) only
D. \(\tan ^{-1} x+\cot ^{-1} x=\frac{\pi}{2}, x \in R\)
E. \(\tan ^{-1} x+\tan ^{-1} y=\tan ^{-1}\left(\frac{x+y}{1-x y}\right), x y<1\)
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The unit of conductance(G) is

Last year, in a rat population of 600 rats, 600 new rats were added through reproduction in the current year to make a total population of 1200 rats.
Find the birth rate of this rat population.