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Q.

Acetaldehyde cannot give

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a

Iodoform test

b

Benedict’s test

c

Tollen’s test

d

Lucas test

answer is B.

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Detailed Solution

  • Acetaldehyde cannot show Lucas test because, Lucas test is given by alcohols only. 
  • It is used in the distinction between primary, secondary and tertiary alcohols. Conc. HCl+ anhydrous ZnCl2 is called Lucas reagent.
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