JEE Main 2016 (Online) 10th April Morning Slot | Electrochemistry Question 165 | Chemistry

Oxidation of succinate ion produces ethylene and carbon dioxide gases. On passing 0.2 Faraday electricity through an aqueous solution of potassium succinate, the total volume of gases (at both cathode and anode) at STP (1 atm and 273 K) is :

2.24 L

4.48 L

6.72 L

8.96 L

JEE Main 2016 (Online) 9th April Morning Slot

MCQ (Single Correct Answer)

-1

What will occur if a block of copper metal is dropped into a beaker containing a solution of 1M ZnSO₄?

The copper metal will dissolve and zinc metal will be deposited.

The copper metal will dissolve with evolution of hydrogen gas.

The copper metal will dissolve with evolution of oxygen gas.

No reaction will occur.

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MCQ (Single Correct Answer)

-1

Galvanization is applying a coating of :

JEE Main 2015 (Offline)

MCQ (Single Correct Answer)

-1

Two Faraday of electricity is passed through a solution of CuSO₄. The mass of copper deposited at the cathode is: (at. mass of Cu = 63.5 amu)

63.5 g

2 g

127 g

0 g

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