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  3. Chemistry
  4. The heats of neutralisation of four acids A,B,C and D when neutralised against a common base are 13. 7, 9.4,11.2, and 12.4 kcal respectively. The weakest and strongest among these acids are respectively

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Q. The heats of neutralisation of four acids $A,B,C$ and $D$ when neutralised against a common base are $13$. $7, 9.4,11.2$, and $12.4 \,kcal$ respectively. The weakest and strongest among these acids are respectively

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Solution:

Lower the value of heat of neutralisation, weaker is the acid and vice-versa. Hence, $B$ is the weakest and $A$ is the strongest acid among the given acids.