UPSC Prelims Sci And Tech – 2021
1) Water can dissolve more substances than any other liquid because (a) it is dipolar in
UPSC Prelims Medieval History – 2023
1) Consider the following: 1. Aerosols 2. Foam agents 3. Fire retardants 4. Lubricants In the
UPSC Prelims Science And Technology – 2022
1) Consider the following: 1. Aarogya Setu2. CoWIN3. Digi Locker4. DIKSHA Which of the above are