A) \[C{{H}_{4}}\]
B) \[N{{H}_{3}}\]
C) \[HF\]
D) \[{{H}_{2}}O\]
Correct Answer: C
Solution :
Acidic strength of the hydrides increases with the increase in electro negativity of the central metal ion. In the given hydrides electro negativity of the central metal ion increases as \[C<N<O<F\]. Thus, order of acidic strength is: \[C{{H}_{4}}<N{{H}_{3}}<{{H}_{2}}O<HF\]
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