Match the items in Column I with the relevant item in Column II.
Column I
 
Column II
 
 
(i) Hydrogen peroxide is used as a
 
(a) zeolite
 
 
(ii)Used in Calgon method
 
(b) perhydrol
 
 
(iii)Permanent hardness of hard water is removed by
 
(c) sodium hexametaphosphate
 
 
  
(d) propellant
 
 
Match the items in Column I with the relevant item in Column II.
| Column I | Column II | 
| (i) Hydrogen peroxide is used as a | (a) zeolite | 
| (ii)Used in Calgon method | (b) perhydrol | 
| (iii)Permanent hardness of hard water is removed by | (c) sodium hexametaphosphate | 
| (d) propellant | 
- 
1 Answer
- 
This is a matching answer type question as classified in NCERT Exemplar (i) → (b); (ii) → (c); (iii) → (a) 
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