Q: Magnesium is used in
(a)fireworks to make a bright white light
(b)gemstones in jewellery
(c)examination of alimentary canal of the patient
(d)purification of water
Correct Answer: (a)
The correct answer is (c) 'रोगी की आहार नाल के परीक्षण में'. This question from the General Studies domain tests knowledge of Miscellaneous.