Chemistry · 2026
JEE Main · 23 January 2026, Shift 1 · Q65
But-2-yne and hydrogen (one mole each) are separately treated with (i) Pd/C and (ii) Na/liq. NH_3 to give the products X and Y respectively. Identify…
But-$\displaystyle 2$-yne and hydrogen (one mole each) are separately treated with (i) Pd/C and (ii) Na/liq. $\displaystyle \mathrm{NH}_3$ to give the products X and Y respectively.
Identify the incorrect statements.
A. X and Y are stereoisomers.
B. Dipole moment of X is zero.
C. Boiling point of X is higher than Y.
D. X and Y react with $\displaystyle \mathrm{O}_3 / \mathrm{Zn}+\mathrm{H}_2 \mathrm{O}$ to give different products.
Choose the correct answer from the options given below :
Identify the incorrect statements.
A. X and Y are stereoisomers.
B. Dipole moment of X is zero.
C. Boiling point of X is higher than Y.
D. X and Y react with $\displaystyle \mathrm{O}_3 / \mathrm{Zn}+\mathrm{H}_2 \mathrm{O}$ to give different products.
Choose the correct answer from the options given below :Official answer
From NTA’s final answer key for this paper.
(4)
B and D Only
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JEE Main 2026 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.