A) Acidic strength of \[HBr>HCl\] but reverse is true for their reducing property
B) Basic strength of \[P{{H}_{3}}>As{{H}_{3}}\] but reverse is true for their Bond angle
C) Dipole moment of \[C{{H}_{3}}Cl>C{{H}_{3}}F\] but reverse is true for their HCH bond angle
D) \[{{K}_{{{a}_{1}}}}\]of fumaric acid is higher than maleic acid but reverse is true for their \[{{K}_{{{a}_{2}}}}\]
Correct Answer: C
Solution :
[a] Acidic strength of HBr > HCl and their reducing properties are also in same order |
[b] Basic strength of \[P{{H}_{3}}>As{{H}_{3}},\]their bond angles are also in same order \[{{\theta }_{2}}>{{\theta }_{1}}\] because \[C-H\] bond has more s-character in \[C{{H}_{3}}F\]than in \[C{{H}_{3}}Cl\] |
[D] \[{{K}_{{{a}_{1}}}}\]of maleic acid is higher then \[{{K}_{{{a}_{1}}}}\]of fumaric acid but reverse is true for their \[{{K}_{{{a}_{2}}}}\] |
[C] |
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