`HCNoverset("Hydrolysis")rarr`acid -1 `CH_(3)C Cl_(3)overset("Hydrolysis")rarr` acid-2 The heat of ionisation of HCN and acid-2 respectivley are x kca

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`HCNoverset("Hydrolysis")rarr`acid -1 `CH_(3)C Cl_(3)overset("Hydrolysis")rarr` acid-2 The heat of ionisation of HCN and acid-2 respectivley are x kca

`HCNoverset("Hydrolysis")rarr`acid -1
`CH_(3)C Cl_(3)overset("Hydrolysis")rarr` acid-2 The heat of ionisation of HCN and acid-2 respectivley are x kcal and y kcal `[x lt y]`. The order of their `pK_(a)` values will be
A. `(pK_(a))_(HCN)gt(pK_(a))_("acid-2")`
B. `(pK_(a))_(HCN(=(pK_(a))_("acid-2")`
C. `(pK_(a))_(HCN)lt(pK_(a))_("acid-2")`
D. All of the above

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - a
Acid-2 is acetic acid. HCN is a weaker acid as its heat of inoisation is less than acetic acid. Hence,
`(pK_(a))_(HCN)gt(pK_(a))_("acid-2")`

4 views Answered 2023-02-05 15:29