Chemistry · 2023
JEE Main · 1 February 2023, Shift 1 · Q48
But-2-yne is reacted separately with one mole of Hydrogen as shown below: B ←[ liq NH_3] Na + H_2 CH_3- C ≡ C - CH_3 →[Δ] Pd / C A A. A is more…
But-$\displaystyle 2$-yne is reacted separately with one mole of Hydrogen as shown below:
$$\underline{\mathrm{B}} \xleftarrow[\text { liq } \mathrm{NH}_3]{\mathrm{Na}} \underset{+\mathrm{H}_2}{\mathrm{CH}_3-\mathrm{C} \equiv \mathrm{C}-\mathrm{CH}_3} \xrightarrow[\Delta]{\mathrm{Pd} / \mathrm{C}} \underline{\mathrm{A}}
$$
A. A is more soluble than B.
B. The boiling point & melting point of A are higher and lower than B respectively.
C. A is more polar than B because dipole moment of A is zero.
D. $\displaystyle \mathrm{Br}_2$ adds easily to B than A.
Identify the incorrect statements from the options given below:
Official answer
From NTA’s final answer key for this paper.
No correct option: NTA dropped this question in its final answer key.
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JEE Main 2023 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.