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Q.

In which of the following combinations of HCl and NaOH, the heat energy liberated is maximum

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a

35ml of 0.1M HCl +15mL of 0.1 M NaOH 

b

30ml of 0.1M HCl + 20mL of 0.1 M NaOH

c

25ml of 0.1M HCl + 25mL of 0.1 M NaOH

d

10ml of 0.1M HCl + 40mL of 0.1 M NaOH

answer is C.

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Detailed Solution

Among given all cases, the solution with the combination of 25 mL of 0.1M HCl + 25mL of 0.1M of NaOH will produce maximum amount of heat energy. Because more no. of moles of the reactants involved in the neutralization reaction

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