In a period, acid - strength increases with the decrease in size of the atom and increase of electronegativity. which of the following is correct order for acidic strength?

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CH4 < NH3 < H2O < HF

NH3 < H2O < HF < CH4

H2O < CH4 < NH3 < HF

H2O < HF

answer is A.

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Detailed Solution

CH4 2.5< NH33.0 < H23.5O N > O > F

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