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Enthalpy of neutralisation of HCl with NaOH is x. The heat evolved when 500 mL of 2 N HCl are mixed with 250 mL of 4N NaOH will be.

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Enthalpy of neutralisation of HCl with NaOH is x. The heat evolved when 500 mL of 2 N HCl are mixed with 250 mL of 4N NaOH will be.

(a) 500x

(b) 100x

(c) x

(d) 10x

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Correct answer: (c) x

Explanation:

Enthalpy of neutralisation of HCl with NaOH is x.

In question gev of HCl

\(\Big(\frac{500 \times 2}{1000} = lgev\Big)\) and NaOH \(\Big(\frac{250 \times 4}{1000} = 1\;lgev\Big)\)

hence the value x.

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