UPSC Prelims Sci And Tech – 2021
1) Water can dissolve more substances than any other liquid because (a) it is dipolar in nature (b) it is a good conductor of heat (c) it has high value of specific heat (d) it is an oxide of hydrogen Correct Answer: (A) it is dipolar in nature 2) With
UPSC Prelims Medieval History – 2023
1) Consider the following: 1. Aerosols 2. Foam agents 3. Fire retardants 4. Lubricants In the making of how many of the above are hydrofluorocarbons used? (a) Only one (b) Only two (c) Only three (d) All four Correct Answer: (c) Only three 2) ‘Wolbachia method’ is sometimes talked about
UPSC Prelims Science And Technology – 2022
1) Consider the following: 1. Aarogya Setu2. CoWIN3. Digi Locker4. DIKSHA Which of the above are built on top of open-source digital platforms? 1 and 2 only 2, 3 and 4 only 1, 3 and 4 only 1, 2, 3 and 4 Correct Answer: (D) 1, 2, 3 and 4