WB JEE 2021 | Electrochemistry Question 3 | Chemistry

WB JEE 2021

MCQ (Single Correct Answer)

-0.25

Which of the following solutions will have highest conductivity?

0.1 M CH₃COOH

0.1 M NaCl

0.1 M KNO₃

0.1 M HCl

WB JEE 2021

MCQ (Single Correct Answer)

-0.25

The reduction potential of hydrogen half-cell will be negative if

p(H₂) = 1 atm and [H⁺] = 1.0 M

p(H₂) = 1 atm and [H⁺] = 2.0 M

p(H₂) = 2 atm and [H⁺] = 1.0 M

p(H₂) = 2 atm and [H⁺] = 2.0 M

WB JEE 2019

MCQ (Single Correct Answer)

-0.33

The charge carried by 1 millimole of Mⁿ⁺ ions is 193 coulombs. The value of n is

WB JEE 2019

MCQ (Single Correct Answer)

-0.33

If electrolysis of aqueous CuSO₄ solution is carried out using Cu-electrodes, the reaction taking place at the anode is

H⁺ + e^$$-$$ $$\to$$ H

Cu²⁺ (aq) + 2e^$$-$$ $$\to$$ Cu (s)

SO$$_4^{2 - }$$ (aq) $$-$$ 2e^$$-$$ $$\to$$ SO₄

Cu(s) $$-$$ 2e^$$-$$ $$\to$$ Cu²⁺ (aq)

WB JEE Subjects