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All years 2026 2024 2023 2022

Correct statement(s) about the compounds P, Q and R is(are)

The stoichiometric reaction of \( 516 \, \mathrm{g} \) of dimethyldichlorosilane with water results in a tetrameric cyclic product \( X \) in \( 75\% \) yield. The weight \( (\text{in g}) \) of \( X \) obtained is _______.
[Use, molar mass \( (\mathrm{g \, mol^{-1}}) \): \( \mathrm{H} = 1 \), \( \mathrm{C} = 12 \), \( \mathrm{O} = 16 \), \( \mathrm{Si} = 28 \), \( \mathrm{Cl} = 35.5 \)]

The electrochemical extraction of aluminum from bauxite ore involves:

The compound(s) which react(s) with \( \mathrm{NH_3} \) to give boron nitride \( (\mathrm{BN}) \) is(are):

At room temperature, disproportionation of an aqueous solution of in situ generated nitrous acid \( \mathrm{(HNO_2)} \) gives the species

Correct statement(s) about the compounds \( X \), \( Y \) and \( Z \) is(are):

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JEE Advance 2022 Paper -2

The compound(s) which react(s) with \( \mathrm{NH_3} \) to give boron nitride \( (\mathrm{BN}) \) is(are):