JEE Advanced 2026 · Paper 1 · Chemistry Q6

ChemistryMultiple correct+4 / -1Question 38 of 48

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

$\ce{MnO2 + Conc. HCl -> MnCl2}$ + X (greenish yellow gas) + $\ce{H2O}$

$\ce{NH3}$ + X (excess) $\longrightarrow$ Y + HCl

X + $\ce{F2}$ (excess) $\xrightarrow{573\ \mathrm K}$ Z

X is used for sterilizing drinking water.

Y has a planar structure.

Z is used in the enrichment of

^{235}

Y is a stronger Lewis base than ammonia.

Answer and worked solution

Official answer: A, C

The compounds.

(A) Chlorine is used to disinfect drinking water. True.

(B) $\ce{NCl3}$ has a lone pair on N: trigonal pyramidal. False.

(C) $\ce{ClF3}$ fluorinates uranium to $\ce{UF6}$ , the volatile compound used to enrich $^{235}$ U. True.

(D) The electronegative Cl atoms make $\ce{NCl3}$ a much weaker base than $\ce{NH3}$ . False.

JEE Advanced 2026 · Paper 1, Chemistry question 6