Home / Unit-1 Nature of Science in Chemistry / Question
MCQ
During the electrolysis of water, which gas is collected at the negative electrode (cathode) in twice the volume of the gas at the other electrode?
Unit-1 Nature of Science in Chemistry
A oxygen
B nitrogen
C hydrogen
D chlorine
Explanation

Water decomposes as 2H2O -> 2H2 + O2, so hydrogen at the cathode is collected in double the volume of oxygen.

Related MCQs

Which Muslim scientist is known as the father of chemistry and the founder of experimental chemistry?
Unit-1 Nature of Science in Chemistry View
Salt and water can be mixed together in any proportion to form a uniform mixture. Such a combination is best described as a/an ____.
Unit-1 Nature of Science in Chemistry View
The metal present in the haemoglobin of blood is ____.
Unit-1 Nature of Science in Chemistry View
The main difference between a physical and a chemical change is that during a chemical change ____.
Unit-1 Nature of Science in Chemistry View
Synthetic fibres such as nylon and polyester are products of ____.
Unit-1 Nature of Science in Chemistry View
The chemical symbol of oxygen is ____.
Unit-1 Nature of Science in Chemistry View