Q: Which one of the following reactions does not result in the evolution of hydrogen gas?
(a)Reaction of zinc metal with dilute sulphuric acid solution
(b)Mixing water to Plaster of Paris
(c)Heating zinc metal with sodium hydroxide solution
(d)Reaction of potassium metal with water
Correct Answer: (b)
The correct answer is (a) 'तनु सल्फ्यूरिक अम्ल के घोल के साथ जस्ता धातु की अभिक्रिया'. This question from the General Studies domain tests knowledge of Miscellaneous.