Chemistry - Questions and Answers, General Study (GK)

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291.

Which one of the following is produced during the formation of photochemical smog?

(a)Hydrocarbons

(b)Nitrogen oxide

(c)Ozone

(d)Methane

Comment

Answer is: BNA

292.

Which of the following is the most reactive among the halogens?

(a)Fluorine

(b)Chlorine

(c)Bromine

(d)Iodine

Comment

Answer is: ANA

293.

Chiral molecules are those which are

(a)Superimposable on their mirror image

(b)Not superimposable on their mirror image

(c)Unstable molecule

(d)Capable of showing geometrical isomerism

Comment

Answer is: BNA

294.

Compound having same number and kinds of different arrangement of atoms in their molecules are called

(a)Allotropes

(b)Isotopes

(c)Isomers

(d)Polymers

Comment

Answer is: CNA

295.

Fruity smell is given by

(a)Esters

(b)Alcohols

(c)Chloroform

(d)Acid anhydride

Comment

Answer is: ANA

296.

Which is tribasic acid?

(a)Succinic acid

(b)Lactic acid

(c)Citric acid

(d)Valeric acid

Comment

Answer is: CNA

297.

Which one of the following substances is made from natural raw materials?

(a)Rayon

(b)Nylon

(c)Polyester

(d)Polystyrene

Comment

Answer is: ANA

298.

Azeotropic mixtures

(a)Boil at different temperatures

(b)Are mixture of solids

(c)Are constant boiling mixtures

(d)None of the above

Comment

Answer is: CNA

299.

The polymeric fibres used as a substitute for wool in making synthetic blankets, sweaters, etc is

(a)Orlon

(b)Nylon

(c)Teflon

(d)Bakelite

Comment

Answer is: ANA

300.

The first organic compound synthesised in the laboratory is

(a)Methane

(b)Urea

(c)Ethylene

(d)Acetic acid

Comment

Answer is: BNA

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Chemistry - Questions and AnswersPage 30

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