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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:
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JEE Main 2023 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.