How will you bring about the following conversion in not more than two steps?
Propanone to propene

Benzoic acid to benzaldehyde

Ethanol to 3-hydroxy butanal

Benzene to m-ntroacetophenone

Benzaldehyde to benzophenone

Bromobenzene to l-phenylethanol

Benzaldehyde to 3-phenyl propan-1-ol

Benzaldehyde to $α$ -hydroxy phenyl acetic acid

Benzoic acid to m-nitrobenzyl alcohol

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Solution

Propanone to propene
$C H_{3} C O C H_{3} P r o p a n o n e L i A I H_{4} - ---- \to 2 (H) C H_{3} C H C H_{3} | O H P r o p a n - 2 - o l$
$H_{2} S O_{4} (C o n c) - ------- \to H e a t C H_{3} C H = C H_{3} P r o p e n e$

Benzoic acid to benzaldehyde

Ethanol to 3-hydroxy butanal

Benzene to m-ntroacetophenone

Benzaldehyde to benzophenone
$C_{6} H_{5} C H O B e n z a l d e h y d e O x i d a t i o n - ----- \to K M n O_{4} C_{6} H_{5} C O O H B e n z o i c a c i d C a (O H)_{2} - ---- \to H e a t C_{6} H_{5} C O C_{6} H_{5} B e n z o p h e n o n e$

Bromobenzene to l-phenylethanol

Benzaldehyde to 3-phenyl propan-1-ol

Benzaldehyde to $α$ -hydroxy phenyl acetic acid

Benzoic acid to m-nitrobenzyl alcohol

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Similar questions

How will you bring about the following conversions in not more than two steps?

(i) Propanone to Propene

(ii) Benzoic acid to Benzaldehyde

(iii) Ethanol to 3-Hydroxybutanal

(iv) Benzene to m-Nitroacetophenone

(v) Benzaldehyde to Benzophenone

(vi) Bromobenzene to 1-Phenylethanol

(vii) Benzaldehyde to 3-Phenylpropan-1-ol

(viii) Benazaldehyde to α-Hydroxyphenylacetic acid

(ix) Benzoic acid to m- Nitrobenzyl alcohol

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