General Science Gk Objective Questions Series #51 Ques=(2501-2550) | Hindigk50k

General Science Gk Objective Questions Series #51 Ques=(2501-2550)

General Science Gk Objective Questions Series #51 Ques=(2501-2550) Top 50 General Science Question and Answer on www.hindigk50k.com, General Science Gk  for SSC, BANKS, LIC,HSSC Exams like SSC CGL, SSC CHSL, BANK PO, BANK CLERK, LIC AO, haryana police, gram sachiv, clerk, general science questions for ssc canal patwari, HPSC etc. General Science General Knowledge general science pdf ebook  General Science General Knowledge Questions . Lets start learn.

General Science Gk Objective Questions Series #51 Ques=(2501-2550)

1.Who is honoured as Father of Modern Chemistry?

(A) Antoine Lavoisier

(B) David Joseph

(C) Rinky Martin

(D) Newton

2. Who invented periodic table?
(A) Dmitri Mendeleev

(B) David Joseph

(C) Rinky Martin

(D) Newton

3. Which is the most abundant gas in the earth’s atmosphere?
(A) Nitrogen (78.08%)

(B) Hydrogen

(C) Carbon-di-oxide

(D) Helium

4. Which gas evolved from paddy fields and marshes?
(A) Methane

(B) Hydrogen

(C) Carbon-di-oxide

(D) Helium

5. Which toxic element present in automobile exhausts?
(A) Lead

(B) Iron

(C) copper

(D) Tustin

6. Which gases cause acid rain?
(A) Sulphur dioxide, Nitrogen oxides

(B) Hydrogen

(C) Carbon-di-oxide

(D) Helium

7. Which metal is used in the making of microchips?
(A) Silicon

(B) Iron

(C) copper

(D) Tustin

8. What is the toxicity caused by silicon called?
(A) Silicosis

(B) Silicon

(C) Oxygen

(D) Carbon

9. Which polymer is used to manufacture electric switches, computer disks etc.?
(A) Bakelite

(B) Polythene

(C) Nylon

(D) Teri cot

10. With which polymer, the cabinets of radio and TV made of?
(A) Polystyrene

(B) Polythene

(C) Nylon

(D) Teri cot

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

(B) Polythene

(C) Nylon

(D) Teri cot

12. Which type of plastics can be recycled?
(A) Thermoplastics

(B) Polythene (PE)

(C) Polyvinyl Chloride (PVC)

(D) Polyprophylene (PP)

13. What is the name given to plastics that cannot be recycled?
(A) Thermosetting plastics

(B) Polythene (PE)

(C) Polyvinyl Chloride (PVC)

(D) Polyprophylene (PP)

14. Which element is a liquid at ordinary temperature?
(A) Mercury

(B) Iron

(C) copper

(D) Tustin

15. What is the chemical name of baking soda?
(A) Sodium bicarbonate

(B) Sodium Hydroxide

(C) Calcium carbonate

(D) Sulphur Soda

16. What is sodium carbonate commonly known as?
(A) Washing soda or soda ash

(B) Bathing Soap

(C) Washing Soap

(D) Surf

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

(B) Glucose

(C) Fructose

(D) Sweets

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

(B) Iron

(C) copper

(D) Tustin

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

(B) Hydrogen

(C) Carbon-di-oxide

(D) Helium

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

(B) Polysulphide solution

(C) Platinum gold

(D) Liquid gold

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

(B) Hydrogen

(C) Carbon-di-oxide

(D) Helium

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

(B) Sodium Nitrate

(C) Methane

(D) Athens

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

(B) Hydrogen

(C) Carbon-di-oxide

(D) Helium

25. What is marsh gas?
(A) Methane

(B) Hydrogen

(C) Carbon-di-oxide

(D) Helium

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

(B) Polythene

(C) Nylon

(D) Teri cot

27. Which is the purest form of carbon?
(A) Graphite

(B) Sodium Nitrate

(C) Methane

(D) Athens

28. Which is called white poison?
(A) Sugar

(B) Glucose

(C) Fructose

(D) Sweets

29. Which is the simplest sugar?
(A) Glucose

(B) Cellulose

(C) Fructose

(D) Sweets

30. What is the biological polymer in paper?
(A) Cellulose

(B) Polythene

(C) Nylon

(D) Teri cot

31. Lysergic acid diethylamide (LSD) is a drug used as a:

(A) Steroid

(B) Sedative

(C) Analgesic

(D) Hallucinogen

32. Which of the following substances undergo ‘sublimation’ on heating.

(1.) Iodine

(2.) Naphthalene

(3.) Camphor

(A) 1 and 2

(B) 1 and 3

(C) 2 and 3

(D) All of them

33. Normal valency of nitrogen is

A. 2
B. 3
C. 4
D. 5

34. The isotope atoms differ in

A. atomic number
B. number of protons
C. number of electrons
D. atomic weight

35. Nucleus of an atom contains

A. electrons
B. protons
C. electrons and protons
D. protons and neutrons

36. Which one of the following does not contain silver?

A. Horn silver
B. Ruby silver
C. German silver
D. Lunar caustic

37. Nail polish remover contains

A. acetone
B. benzene
C. acetic acid
D. petroleum ether

38. What is a mixture of potassium nitrate powdered charcoal and sulphur called?

A. paint
B. glass
C. gun powder
D. cement

39. Which is the heaviest metal?

A. iron
B. mercury
C. nickel
D. osmium

40. Bleaching action of chlorine is by

A. oxidation
B. reduction
C. decomposition
D. hydrolysis

General Science Gk Objective Questions Series #51 Ques=(2501-2550) 

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