Question

In Ion exchange method, which exchange the cations are called
A anion exchangers
B cation exchangers
C neutral exchanger
D none of these​

Answer 1

Answer:

Correct option is

A

True

The ion - exchange resins are synthetic organic polymers (e.g., polystyrene).

These polymers contain exchangeable cations or anions.

In cation exchange resin, sodium ions are exchanged by calcium and magnesium ions from hard water. Thus, helps in softening of water.

Example :- zeolites alumino-silicate polymer with exchangeable sodium ions :

2NaAlSi

2

O

6

+Ca

2+

→Ca(AlSi

2

O

6

)

2

+2Na

+

The hardness is thus removed.

Similarly, anion exchange resins have exchangeable anions including Cl

−

,SO

4

2−

,OH

−

.

An anion resin is one that exchanges negative ions.

Therefore, option A is correct.

Explanation:

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