Science GK Questions Answers, Science Facts, General Knowledge

1. Which chemical is used to make rain coats?
Poly Vinyl Chloride(PVC)

2. Which type of plastics can be recycled?
Thermoplastics

3. What is the name given to plastics that cannot be recycled?
Thermosetting plastics

4. Which element is a liquid at ordinary temperature?
Mercury

5. What is the chemical name of baking soda?
Sodium bicarbonate

6. What is sodium carbonate commonly known as?
Washing soda or soda ash

7. What is sodium chloride?
Table salt

8 What is table sugar?
Cane sugar (Sucrose)

9. What is the element present on lead pencils?
Carbon (graphite)

10. Which gas is found in soda water?
Carbon dioxide?

11. Who is honored as Father of Modern Chemistry?
Antoine Lavoisier

12. Who invented periodic table?
Dmitri Mendeleev

13. Which is the most abundant gas in the earth's atmosphere?
Nitrogen (78.08%)

14. Which gas evolved from  paddy fields and marshes?
Methane

15. Which toxic element present in automobile exhausts?
Lead

16. Which gases cause acid rain?
Sulphur dioxide, Nitrogen oxides

17. Which metal is used in the making of microchips?
Silicon

18. What is the toxicity caused by silicon called?
Silicosis

19. Which polymer is used to manufacture electric switches, computer disks etc.?
Bakelite

20. With which polymer, the cabinets of radio and TV made of?
Polystyrene

21. What is the solvent of gold?
Aquaregia

22. Name the chemical assed to make tooth pastes white?
Titanium dioxide

23. Which chemical is the reason behind the brown colour of human faces?
Bilirubin

24. Which chemical is called Chile Salt peter?
Sodium Nitrate

25. What is marsh gas?
Methane

26. What is the chemical name of Chinese salt?
Monosodium glutamate

27. Which is the purest form of carbon?
Graphite

28. Which is called white poison?
Sugar

29. Which is the simplest sugar?
Glucose

30. What is the biological polymer in paper?
Cellulose