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  4. A weak acid HX (.Ka=(10)- 5.) on reaction with NaOH gives NaX. For 0.1 M aqueous solution of NaX, the % hydrolysis is

Q. A weak acid on reaction with NaOH gives NaX. For 0.1 M aqueous solution of NaX, the % hydrolysis is

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Solution:



Or i.e.,

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2. A cation is in the centre touches three anions. Assume that the anions also touch each other. The limiting radius ratio, is

3. Blue colour of alkali and alkaline earth metals in liquid is due to

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5. The density of 2 M aqueous solution of NaOH is 1.28 g/cm. The molality of the solution is
[Given that molecular mass of NaOH = 40 g mol]

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