The pBlock Elements - Result Question 1
####1. Match the following and identify the correct option. (A) $CO(g)+H_2(g)$ (i) $Mg(HCO_3)_2+$ $Ca(HCO_3)_2$ (B) Temporary hardness of water (ii) An electron deficient hydride (C) $B_2 H_6$ (iii) Synthesis gas (D) $H_2 O_2$ (iv) Non-planar structure
[2020] (A) (B) (C) (D)
(a) (iii)
(ii) (i)
(iv)
(b) (iii)
(iv)
(ii)
(i)
(c) (i)
(iii)
(ii)
(iv)
(d) (iii)
(i)
(ii)
(iv)
Show Answer
Solution:
- (d)
A. Mixture of $CO$ and $H_2$ gases is known as water gas or synthesis gas.
B. Temporary hardness of water is due to bicarbonates of calcium and magnesium.
C. Diborane $(B_2 H_6)$ is an electron deficient hydride. D. $H_2 O_2$ is non-planar molecule having open book like structure.
