Electrochemistry-I Chemistry Test Series IIT JEE

Test Preparation on Electrochemistry-I-Chemistry Test Series IIT JEE-2020

1.

Sodium is made by the electrolysis of a molten mixture of about 40% NaCl and 60% CaCl2 because-

1CaCl2 helps in conduction of electricity
2This mixture has a lower melting point than NaCl
3Ca++ can displace Na from NaCl
4Ca++ can reduce NaCl to Na

2.

The products formed when an aqueous solution of NaBr is electrolysed in a cell having inert electrodes are-

1Na and Br2
2Na and O2
3H2, Br2 and NaOH
4H2 and O2

3.

During the electrolysis of molten sodium chloride, the time required to produce 0.10 mol of chlorine gas using a current of 3 amperes is-

1330 minutes
255 minutes
3110 minutes
4220 minutes

Check your progress:


Right Ans	Wrong Ans	Not Attempted

Prev Question Next Question Show Answer