Chemistry - Questions and Answers, General Study (GK)

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Chemistry - Questions and AnswersPage 42

411.

Vinegar is the trade name of

(a)Acetic acid

(b)Chloroform

(c)Carbon tetrachloride

(d)Ethyl alcohol

Comment

Answer is: ANA

412.

Which one of the following types of glass can cut off ultraviolet rays?

(a)Soda glass

(b)Pyrex glass

(c)Jena glass

(d)Crooked glass

Comment

Answer is: DNA

413.

Which are the materials generally employed as solder in soldering operation in electronics?

(a)Iron and tin

(b)Lead and tin

(c)Aluminium and tin

(d)Aluminium and iron

Comment

Answer is: BNA

414.

Which one of the following does not contain silver?

(a)Horn silver

(b)German silver

(c)Ruby silver

(d)Lunar caustic

Comment

Answer is: BNA

415.

The chemical used as a fixer in photography is

(a)Sodium sulphate

(b)Ammonium persulphate

(c)Sodium thiosulphate

(d)Borax

Comment

Answer is: CNA

416.

Which one of the following is a mixed fertilizer?

(a)Urea

(b)CAM

(c)Ammonium sulphate

(d)NPK

Comment

Answer is: DNA

417.

What is the main constituent of a pearl?

(a)Calcium carbonate and magnesium carbonate

(b)Calcium sulphate only

(c)Calcium oxide and calcium sulphate

(d)Calcium carbonate only

Comment

Answer is: DNA

418.

Which one of the following has the highest fuel value?

(a)Hydrogen

(b)Charcoal

(c)Natural gas

(d)Gasoline

Comment

Answer is: ANA

419.

An ideal fuel should have

(a)High calorific value

(b)Low ignition value

(c)Regulated and controlled

(d)All of the above

Comment

Answer is: DNA

420.

The method that cannot be used for removing permanent hardness of water is

(a)Adding sodium carbonate

(b)Distillation

(c)Adding caustic soda

(d)Boiling

Comment

Answer is: DNA

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Chemistry - Questions and AnswersPage 42

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