The ion exchange resin which remove metal ions from hard water consist of giant organic molecule containing :

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Answer 1

Giant organic molecules having acidic or basic groups are known as ion-exchange resins. Acid resins contain the acid group $(- C O O H)$ .
Acid resins exchange their $H^{+}$ ions with other cations such as $C a^{2 +}, M g^{2 +}$ etc., present in hard water. Therefore, acid resins are known as base-exchange resins.

Hence, option B is correct.

Answer 2

Giant organic molecules having acidic or basic groups are known as ion-exchange resins. Acid resins contain the acid group $(- C O O H)$ .

Acid resins exchange their $H^{+}$ ions with other cations such as $C a^{2 +}, M g^{2 +}$ etc., present in hard water. Therefore, acid resins are known as base-exchange resins.

Hence, option B is correct.

The ion exchange resin which remove metal ions from hard water consist of giant organic molecule containing :

$- C l$ group

$- C O O H$ group

$- O H$ group

$- N H_{2}$ group

Calgon removes hardness by forming complex compounds with the $C a^{2 +}$ and $M g^{2 +}$ ions of hard water or by adsorption.

Hard water when passed through ion exchange resin containing $R C O O H$ group, becomes free from :

Discuss the principle and method of softening of hard water by synthetic ion-exchange resins.

Hard water is passed through an ionic exchange resin containing $- S O_{3} H$ group. The outcoming water is free of the following ions_________.

When zeolite is treated with hard water the sodium ion are exchanged with:

Revise with Concepts

Water - Structure and Physical Properties

Water - Chemical Properties

Hard and Soft Water-Advanced

The ion exchange resin which remove metal ions from hard water consist of giant organic molecule containing :

−Cl group

−COOH group

−OH group

−NH2​ group

Calgon removes hardness by forming complex compounds with the Ca2+and Mg2+ ions of hard water or by adsorption.

Hard water when passed through ion exchange resin containing RCOOH group, becomes free from :

Discuss the principle and method of softening of hard water by synthetic ion-exchange resins.

Hard water is passed through an ionic exchange resin containing −SO3​H group. The outcoming water is free of the following ions_________.

When zeolite is treated with hard water the sodium ion are exchanged with:

Revise with Concepts

Water - Structure and Physical Properties

Water - Chemical Properties

Hard and Soft Water-Advanced

$- C l$ group

$- C O O H$ group

$- O H$ group

$- N H_{2}$ group

Calgon removes hardness by forming complex compounds with the $C a^{2 +}$ and $M g^{2 +}$ ions of hard water or by adsorption.

Hard water when passed through ion exchange resin containing $R C O O H$ group, becomes free from :

Hard water is passed through an ionic exchange resin containing $- S O_{3} H$ group. The outcoming water is free of the following ions_________.