1. B₂H₆ 2. Red Phosphorus 3. CaO 4. DIBAL-H

Answer: 3. CaO Key idea: decarboxylation of a sodium carboxylate with soda lime. mathrmCH₃CH₂COONa+NaOHxrightarrowCaO,\ ΔCH₃CH₃+Na₂CO₃ . The missing chemical is CaO (soda lime = NaOH + CaO).

Topic: Classification, isomerism, nomenclature, preparation· Hydrocarbons

CH_3CH_2COO^-Na^+ [Heat]NaOH,\ +\ ? CH_3CH_3 + Na_2CO_3.Consider the above reaction and identify the missing reagent/chemical.

1. \(B_2H_6\)

2. Red Phosphorus

3. CaO

4. DIBAL-H

Doubtly Asked 30 Oct 2026 NEET UG 2021 Practice test neet Save WhatsApp Report

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Answer: 3. CaO

Key idea: decarboxylation of a sodium carboxylate with soda lime.

\(\mathrm{CH_3CH_2COONa+NaOH\xrightarrow{CaO,\ \Delta}CH_3CH_3+Na_2CO_3}\). The missing chemical is CaO (soda lime = NaOH + CaO).

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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CH_3CH_2COO^-Na^+ [Heat]NaOH,\ +\ ? CH_3CH_3 + Na_2CO_3.Consider the above reaction and identify the missing reagent/chemical.

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