Civil Services TNPSC Group 1 (New Syllabus) Mock Test 2025 General Science Chemistry Chemistry in Everyday Life
The important chemical compound which is used in our day-to-day life is _________
(a) Ammonia (NH3) (b) Water (H2O) (c) Oxygen (O2) (d) Hydrochloric acid (HCl)
1
(a) and (d)
2
(a) and (b)
3
(b) and (c)
4
(c) and (d)
5
Answer Not Known