Cu(s) + Sn²⁺(0.001M) ® Cu²⁺ (0.01M) + Sn(s)

The Gibbs free energy change for the above reaction at 298 K is x * 10^-1 KJmol^-1. The value of x is __________. (nearest integer)

[Given : $E_{C{u}^{2+}/Cu}^{\Theta }$ 0.34V; $E_{S{n}^{2+}/Sn}^{\Theta }$ =96500 Cmol^-1] 

To measure light intensity we use

A 0.8 m long solenoid has 800 turns and has a field density of 2.52 × 10^–3 T at its centre. What is current in the wire?

Consider the following reaction sequence

Product B is

Major product of the given reaction is

(CH₃)₃CBr + CH₃–CH₂–ONa → product

Chloroform on reaction with O₂ in presence of light gives