Academic Experts Solutions for Chapter: Electrochemistry, Exercise 1: Exercise

Author:Academic Experts

Academic Experts Chemistry Solutions for Exercise - Academic Experts Solutions for Chapter: Electrochemistry, Exercise 1: Exercise

Attempt the free practice questions on Chapter 4: Electrochemistry, Exercise 1: Exercise with hints and solutions to strengthen your understanding. Practice Book for KVPY Aptitude Test - Stream SX Chemistry solutions are prepared by Experienced Embibe Experts.

Questions from Academic Experts Solutions for Chapter: Electrochemistry, Exercise 1: Exercise with Hints & Solutions

MEDIUM
KVPY Aptitude Test - Stream SX
IMPORTANT

The conductivity of a saturated solution of BaSO4 is 3.06×10-6 ohm-1 cm-1 and its equivalent conductance is 1.53 ohm-1 cm2 equiv-1. The Ksp for BaSO4 will be:

HARD
KVPY Aptitude Test - Stream SX
IMPORTANT

Consider the reaction: T=298 K

Cl2g+2Br-aq2Cl-aq+Br2aq

Determine the emf (in volts) of the cell, when Cl-=Br2=Br-=0.01 M and Cl2 gas is at 1 atm pressure.

(E° for the above reaction is =0.29 volt)

Enter only the numerical value in the box  and exclude the units.

EASY
KVPY Aptitude Test - Stream SX
IMPORTANT

Zn+Cu2+aqCu+Zn2+aq

Reaction quotient is Q=Zn2+Cu2+E°cell=1.10 VEcell will be 1.1591 V. The value of  Zn2+Cu2+ is 10-x, the value of x is

Round off your answer to the nearest integer.

MEDIUM
KVPY Aptitude Test - Stream SX
IMPORTANT

Four moles of electrons were transferred from anode to cathode in an experiment on the electrolysis of water. Determine the total volume of the two gases (dry and at STP) produced: (in litres).

HARD
KVPY Aptitude Test - Stream SX
IMPORTANT

A cell CuCu++Ag+Ag, initially contains 2 M Ag+ and 2 M Cu++ ions in 1 L electrolyte. Determine the change in cell potential after the passage of 10 amp current for 4825 sec.

HARD
KVPY Aptitude Test - Stream SX
IMPORTANT

The half cell reactions for rusting of iron are:
2H++12O2+2e-H2O; E°=+1.23 V, Fe2++2e-Fe; E°=-0.44 V
Determine ΔG° (in kJ) for the reaction.

MEDIUM
KVPY Aptitude Test - Stream SX
IMPORTANT

The limiting molar conductivities Λ° for NaCl, KBr and KCl are 126, 152 and 150 S cm2 mol-1 respectively. Determine the Λ° for NaBr.

MEDIUM
KVPY Aptitude Test - Stream SX
IMPORTANT

Aluminium oxide may be electrolysed at 1000C to furnish the aluminium metal (At. Mass =27 amu1 Faraday =96,500 Coulombs). The cathode reaction is Al3++3e-Al. To prepare 5.12 kg of aluminium metal by this method, If 5.49×10y C electricity would be required. then value of y will be.