Statement-I: Calgon forms soluble complex with cations causing hardness of water.Statement-II: Hydrogen is a better fuel than petrol.

Statement-I: Calgon forms soluble complex with cations causing hardness of water.

Statement-II: Hydrogen is a better fuel than petrol.

  1. A

    Both statements I and II are correct

  2. B

    Statement-I is correct and statement-II is incorrect

  3. C

    Statement-I is incorrect and statement-II is correct

  4. D

    Both statements I and II are incorrect

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    Solution:

    I)  Na2Na4PO36+M+2Na2MNa2PO36+2Na+;                                                      soluble

    II) Calorific value of hydrogen is  143 kJ/gram where as petrol is 48.7 kJ/gram.

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