Chemistry - Complete s-block Question with Solution | TestHub
The unbalanced reactions given in List-I are to be matched with the properties of their products given in List-II. Which of the following options is an INCORRECT combination?
List-I | List-II |
|---|---|
(P) | (i) One of the products is a diatomic gas at room temperature |
(Q) | (ii) One of the products is basic in nature |
(R) | (iii) One of the products contains a peroxy linkage |
(S) | (iv) One of the products turns red litmus blue |
| (v) One of the products is amphoteric in nature |
| (vi) One of the products is a carbonate salt |
The correct option is :
Options:
Answer:
Solution:
P gives magnesium hydroxide and ammonia on hydrolysis: P-ii,iv.
Q gives calcium hydroxide and hydrogen on hydrolysis: Q-i,ii,iv.
R gives potassium hydroxide, hydrogen peroxide and oxygen on hydrolysis: R-i,ii,iii,iv.
S gives sodium carbonate and oxygen with carbon dioxide: S-i,ii,iv,vi.
Option D wrongly includes v for R.
Potassium hydroxide, hydrogen peroxide and oxygen are not amphoteric products in this classification.
Therefore D is the incorrect combination.
The properties listed in A, B and C are correct.
