\(30\text{ mL}\) of \(\text{NiSO}_4\) is electrolysed using a current of \(360\text{mA}\) for \(30\text{ minutes}\).
How much of the metal would have been plated out if the current efficiency is only \(60\%\)? (\(\text{Ni} = 58.7\text{g/mol}\))

"The rate constant of a first order reaction follows the equation 
 \(log\ k = 8.0 - \frac{5000}{T}\)
 The activation energy \((E_a)\) for the reaction is:
 (Given \(R = 8.3\ JK^{-1}\ mol^{-1}\))"

Identify the most volatile compound

Read the Passage carefully and answer the Questions
Kinetic studies not only help us to determine the rate of a chemical reaction but also describe the conditions by which the reaction rates can be altered.
The factors such as concentration, temperature, pressure and catalyst affect the rate of a reaction.
The speed of a reaction or the rate of a reaction can be defined as the change in concentration of a reactant or product in unit time.
Rate \(=k[A]^x[B]^y\)
Here \(k\) is the rate constant
\(x+y\) gives the overall order of a reaction, whereas \(x\) and \(y\) represent the order with respect to the reactants \(A\) and \(B\), respectively.
The order of a reaction which does not exist is

Which of the following compounds will give Fehling's solution test?
(A) \(CH _3 CHO\)
(B) \(C _6 H _5 CHO\)
(C) \(CH _3 CH _2 CHO\)
(D) HCHO

Which of the following statements is not correct about cell potential?

In Cu - Ag electrochemical cell Cu acts as

Relation between equilibrium constant and standard potential of the cell under standard conditions is represented by :

An electron beam passes through a region of magnetic field of \( 2 \times 10^{-3} \text{ T} \) and an electric field of \( 3.2 \times 10^4 \text{ V m}^{-1} \), both acting perpendicular to each other. If the path of the electron remains undeviated calculate the speed of electron : [Mass of electron \( = 9.1 \times 10^{-31} \text{ kg} \)]

Arrange the following phenols in the decreasing order of their acidic strength:
(A) Phenol
(B) o-Cresol
(C) o-Nitrophenol
(D) 2,4-Dinitrophenol
Choose the correct answer from the options given below:

The brain size of Neanderthal man was :

Two slits 0.1 mm apart with screen 2 m away produce fringe separation with 500 nm light. The separation is :

Match List-I with List-II

List-I (Structures)	List-II (Characteristics)
(A) Heterochromatin	(I) A set of positively charged basic proteins
(B) Nucleosomes	(II) Densely packed and inactive genetic material
(C) Histones	(III) Transcriptionally active genetic material
(D) Euchromatin	(IV) DNA is wrapped around the histone octamer to formthis structure

Choose the correct answer from the options given below: