CBSE Class 12 Chemistry 2022 Term 1 Paper

Question : 49 of 55

Marks: +1, -0

Assertion (A): Fluorine forms only one oxoacid HOF.
Reason (R): Fluorine atom is highly electronegative.

Both A and R are true and R is the correct explanation of $A$ .
Both ${\A}$ and ${\R}$ are true but ${\R}$ is not the correct explanation of $A$ .
$A$ is true but $R$ is false.
A is false but ${\R}$ is true.

Solution:

Both A and R are true but R is not the correct explanation of A.
Fluorine atom is highly electronegative. due to, absence of d-orbital, Fluorine does not form the oxoacids having higher oxidation state such as +3,+5,+7,.......... . That's why it only forms one oxoacid HOF.

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