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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