JEE Main 2022 · 29 Jul · Shift 1 · Chemistry Q61

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ChemistrySingle correct+4 / -1Question 61 of 90

Which of the following pair of molecules contain odd electron molecule and an expanded octet molecule ?

\mathrm{BCl_3}

and

\mathrm{SF_6}

NO and

\mathrm{H_2SO_4}

\mathrm{SF_6}

and

\mathrm{H_2SO_4}

\mathrm{BCl_3}

and NO

Answer and worked solution

Official answer: B

Odd electron. NO has 11 valence electrons. Expanded octet. S in $\mathrm{H_2SO_4}$ has 12 electrons around it. ( $\mathrm{BCl_3}$ is electron deficient, not odd.)

(B)

Topics:Covalent bonding and Lewis structures

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JEE Main 2022 · 29 Jul · Shift 1, Chemistry question 61