Explain the increasing order of acidic strength of following acids. HF

1.	Explain the increasing order of acidic strength of following acids. HF, NH_3 , H_2O and CH_4.
Answer» Solution :`CH_4 lt NH_3 lt H_2O lt HF` `to` Acidic strength INCREASE `to` (`because` ELECTRONEGATIVITY of A is increases) In these acid the element A = C, N, O and F, All are in same PERIOD (Second period) and its electronegativity is in INCREASING ORDER. Therefore the strength of A -H bond is decrease and strength as a acid is increase.

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