Per NCERT §9.3.4(1), partial reduction of an alkyne to a CIS alkene uses which catalyst?
ALindlar's catalyst
BSodium in liquid NH₃
CPt/Pd in H₂SO₄
DAnhydrous AlCl₃
Answer & Solution
Correct answer: A. Lindlar's catalyst
NCERT §9.3.4: Lindlar's (Pd on CaCO₃, poisoned by S or quinoline) gives cis. Na in liq NH₃ gives trans.
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