The Pblock Elements Ques 1
1. Match the following and identify the correct option.
(A) $CO(g)+H_2(g) \quad \quad \quad \quad \quad \quad $ (i) $Mg(HCO_3)_2+$ $Ca(HCO_3)_2$
(B) Temporary hardness of water $\quad $ (ii) An electron deficient hydride
(C) $B_2 H_6 \quad \quad \quad \quad \quad\quad \quad \quad \quad \quad $ (iii) Synthesis gas
(D) $H_2 O_2 \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad $ (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
Answer:
Correct Answer: 1.(d)
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.
BETA
