JEE CHEMISTRY MCQ: 13 TH GROUP ELEMENTS (P-BLOCK)

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Analyzing +4 | -1

Assertion (A) :

{B}_2 {Cl}_4, {GaCl}_2, {GaS}

are diamagnetic.

Reason (R) : They show +2 oxidation state.

View answer and explanation

Correct option: B

Both

\mathbf{A}

and

\mathbf{R}

are true but

\mathbf{R}

is not the correct explanation of

\mathbf{A}

Option B (Both

\mathbf{A}

and

\mathbf{R}

are true but

\mathbf{R}

is not the correct explanation of

\mathbf{A}

) is correct because while both the assertion and reason are true, the +2 oxidation state is not the direct reason for diamagnetism.

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