Chemistry One-Liners for various competitive examinations- May 14

By admin / May 14, 2019

Chemistry One-Liners for various competitive examinations- May 14

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Here are some important Chemistry one-liners for students competing for various exams

Watch some of the important Chemistry Bits below.

1- By whom Neutron was discovered?

(A) J. J. Thomson
(B) J. Chadwick
(C) Neil Bohr
(D)Rutherford

2- Chemically Aspirin is called as

(A) Acetylsalicylic acid
(B) Ethyl salicylate
(C) Sodium salicylate
(D) Methyl salicylate

3- With what Dry ice is made up of

(A ) Carbon dioxide
(B) Hydrocarbon
(C) Chlorine
(D) Water.

4- Name the most malleable metal among the following

(A) Gold
(B) Iron
(C) Silver
(D) Platinum

5- The process of Galvanization is deposition of

(A) copper on iron
(B) tin on iron
(C) aluminum on iron
(D) zinc on iron

6- The chemical formula of white vitriol is

(A) FeSO4, 7H2O
(B) ZnSO4, 7H2O
(C) MgSO4, 7H2O

(D) CuSO4, 5H2O

7- Phenyl used for the household purpose is a derivative of

(A) Anthracene
(B) Benzene
(C) Tartaric acid
(D) Methyl alcohol

8- Ozone depletion in the stratosphere is mainly due to

(A) Sulphur-di-Oxide
(B) Carbon dioxide
(C) Chlorofluorocarbon
(D) Nitric Oxide

9- Vulcanization is the process of heating rubber with 3-5 % of

(A) Sulfur
(B) Lime
(C) Potassium permanganate
(D) Naphthalene

10- Name the pollutant of the atmosphere that inhibits the Hill reaction of photosynthesis.

(A) Hydro Carbon
(B) Peroxyacetyl nitrate
(C) Ultraviolet rays
(D) Nitrogen monoxide

11- Name the substance that can act as an only reducing agent.

(A) H2S
(B) K2Cr2O7
(C) MnO2

(D) H2O2

12- In underground Railways, with what the air is purified?

(A) Ozone
(B) Hydrogen peroxide
(C) Oxygen
(D) None of the above

13- Blood hemoglobin contains this metal

(A) Iron
(B) Copper
(C) Magnesium
(D) Aluminum

14- Fullerene is

(A) A compound of carbon
(B) A synonym for carborundum
(C) An allotrope of carbon
(D) Artificial emery

15- The heat of this radiations is trapped by the Greenhouse effect gases

(A) Ultraviolet
(B) Infrared
(C) Both (A) and (D)
(D) Solar

ANSWERS-

1- J. Chadwick.

2- Acetylsalicylic acid.

3-Carbon dioxide.

4- Gold.

5- zinc on iron.

6- ZnSO4. 7H2O

7- Benzene.

8- Chlorofluorocarbon.

9- Sulphur.

10- Peroxyacyl nitrate.

11- H2S.

12- Hydrogen peroxide.

13- Iron.

14-An allotrope of carbon.

15-Infrared.

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