Natural Science Quiz Questions and Answers for Competitive Exams

General Science Questions and Answers: 2020

17. What is sodium chloride?
(A) Table salt

(B) table Sugar

(C) Coffee

(D) Normal Salt

Show Answer

18 What is table sugar?
(A) Cane sugar (Sucrose)

(B) Glucose

(C) Fructose

(D) Sweets

Show Answer

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

(B) Iron

(C) copper

(D) Tustin

Show Answer

20. Which gas is found in soda water?
(A) Carbon dioxide

(B) Hydrogen

(C) Carbon-di-oxide

(D) Helium

Show Answer

21. What is the solvent of gold?
(A) Aqua Regia

(B) Polysulphide solution

(C) Platinum gold

(D) Liquid gold

Show Answer

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

(B) Hydrogen

(C) Carbon-di-oxide

(D) Helium

Show Answer

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

(B) Sodium Nitrate

(C) Methane

(D) Athens

Show Answer

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

(B) Hydrogen

(C) Carbon-di-oxide

(D) Helium

Show Answer

If you have any problem or doubt regarding Natural Science Quiz Questions and Answers, you can ask me in the comment section. To more practice for Natural Science Quiz Questions and Answers, Visit next page.