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24/09/2021 4:12 pm
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Equal volumes of methanoic acid and sodium hydroxide are mixed. If x is the heat of formation of water, then heat evolved on neutralization is
(a) more than x
(b) equal to x
(c) less than x
(d) twice x
1 Answer
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24/09/2021 4:13 pm
Correct answer: (c) less than x
Explanation:
Neutralisation of weak acid with strong base hence < x. Extra heat is utilised to effect the ionisation of weak acid.