Practice Ibps questions - general science mcq Online Quiz (set-1) For All Competitive Exams

Q-1)   Glass is a transparent substance obtained by heating silica with oxides or carbonates of metals. Glass is a mixture of

(a)

(b)

(c)

(d)


Q-2)   Potash (Potassium carbonate) is used as a fertilizer. It is also known as

(a)

(b)

(c)

(d)


Q-3)   The principle of cleaning by soap is

(a)

(b)

(c)

(d)

Explanation:

Soaps form surface films, reduce surface tension of solution and help in removing dirt and dust by emulsifying grease.


Q-4)   Night-blindness is caused due to the deficiency of

(a)

(b)

(c)

(d)

Explanation:

Night-blindness is caused due to the deficiency of vitamin A.


Q-5)   Which of the statements about glass are correct?
  1. Glass is a super-cooled liquid having infinite viscosity.
  2. Violet coloured glass is obtained by adding MnO2 .
  3. Glass is a man-made silicate.
  4. Glass is a crystalline substance.
Select the correct answer using the codes given below.

(a)

(b)

(c)

(d)

Explanation:

Glass is an amorphous substance.


Q-6)   Which one of the following contains cobalt ?

(a)

(b)

(c)

(d)

Explanation:

Vitamin B12 (Cyanocobalamines): Cobalamine has by far the most complicated structure of all the vitamins.

It has a cobalt atom in the centre. It also has – CN groups in its structure.

It is a pink-coloured crystalline, water soluble vitamin.


Q-7)   Which one of the following is a vitamin?

(a)

(b)

(c)

(d)

Explanation:

Vitamin C is chemically ascorbic acid.


Q-8)   The aqueous solution of one of the following vitamins is dark in colour

(a)

(b)

(c)

(d)

Explanation:

The aqueous solution of vitamin B12 is dark in colour.


Q-9)   Which one of the following correctly defines the state of glass?

(a)

(b)

(c)

(d)

Explanation:

Glass is an amorphous, hard, brittle, super cooled liquid.


Q-10)   Washing soaps are potassium and sodium salts of

(a)

(b)

(c)

(d)