science gk

1⃣❓Red litmus paper turns blue under ………….. conditions?
✅Basic (Alkaline)

2⃣❓Which chemical is used for the preservation of biological specimen?
✅Formalin

3⃣❓The alcohol which is present in the alcoholic beverages is ………….?
✅Ethanol (Ethyl Alcohol)



4⃣❓What is ‘Laughing gas’?
✅Nitrous oxide

5⃣❓What is used as eyewash?
✅Boric Acid

6⃣❓Which element is used for manufacturing computer chips, solar cells and trancistors?
✅silicon

7⃣❓Benzodiazepine is the most commonly used ………..?
✅Psychoactive drug (Sleeping pill)

8⃣❓Which chemical is used for the artificial ripening of fruits?
✅Calcium carbide

9⃣❓What is the optimum soil PH range for the most plants?
✅6 to 7.5

1⃣0⃣❓What turns blue litmus paper into red?
✅Acids