KCET · Chemistry · Aldehydes and Ketones
Reaction by which benzaldehyde cannot be prepared is
- A Benzoic acid \(\stackrel{\mathrm{Zn} \text {. } \mathrm{Hg} \text { and conc. } \mathrm{HCl}}{\longrightarrow}\)
- B Toluene \(\frac{\text { (i) } \mathrm{CrO}_2 \mathrm{Cl}_2 \text { in } \mathrm{CS}_2}{\text { (ii) } \mathrm{H}_3 \mathrm{O}^{+}}\)
- C Benzoyl chloride \(+\mathrm{H}_2 \stackrel{\mathrm{Nd}-\mathrm{BaSO}_4}{\mathrm{~A}}\)
- D \(\mathrm{Benzene}+\mathrm{CO}+\mathrm{HCl} \stackrel{\text { Anhyd } \mathrm{AlCl}_3}{\longrightarrow}\)
Answer & Solution
Correct Answer
(A) Benzoic acid \(\stackrel{\mathrm{Zn} \text {. } \mathrm{Hg} \text { and conc. } \mathrm{HCl}}{\longrightarrow}\)
Step-by-step Solution
Detailed explanation
(a) 
(b)
(c)
(d)

(b)

(c)

(d)

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