Q60 of 270 Page 99

The aqueous solution of one of the following salts will tum red litmus to blue. This salt is:

potassium carbonate salt is formed of strong base and weak acid. Hence in presence of water, it will give large concentration of OH- ions.

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58

The number of molecules of water of crystallisation present in washing soda crystals is:

 59

The salt whose aqueous solution will tum blue litmus to red is:

 61

The salt whose aqueous solution will have no effect on either red litmus or blue litmus is

 62

The aqueous solution of one of the following salts will tum phenolphthalein indicator pink. This salt is: