Question

Match the column I with column II and mark the appropriate choice.

	Column I		Column II
(A)	Boron fibres	(i)	Heat resistant glasses
(B)	Borax	(ii)	Bullet proof vest
(C)	Aluminium	(iii)	Filler in automobile tyre
(D)	Carbon black	(iv)	Transport industry

• A. (A) $\to$ (i), (B) $\to$ (ii), (C) $\to$ (iii), (D) $\to$ (iv)
• B. (A) $\to$ (ii), (B) $\to$ (i), (C) $\to$ (iv), (D) $\to$ (iii)
• C. (A) $\to$ (ii), (B) $\to$ (iii), (C) $\to$ (i), (D) $\to$ (iv)
• D. (A) $\to$ (iii), (B) $\to$ (ii), (C) $\to$ (i), (D) $\to$ (iv)

Answer 1

The correct option is B (A) $\to$ (ii), (B) $\to$ (i), (C) $\to$ (iv), (D) $\to$ (iii)

1)Boron fibres- It absorbs neutron radiation hence used in bullet proof vest.

2)Borax-It is thermal resistant and also has better optical clarity hence used in the making of heat-resistant glasses.

3)Aluminium- It is used in the transport industry.

4)Carbon black- It is used as a reinforcing filler in an automobile tyre.