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A cyanohydrin of a compound X on hydroly...

A cyanohydrin of a compound X on hydrolysis gives lactic acid. The X is

A

`HCHO`

B

`CH_(3)CHO`

C

`(CH_(3))_(2)CO`

D

`C_(6)H_(5)CH_(2)CHO`

Text Solution

Verified by Experts

The correct Answer is:
B
`underset("Acetaldehyde")(CH_(3)CHO)+HCNtoCH_(3)-underset(OH)underset(|)overset(H)overset(|)C-Cnoverset(H_(3)O^(+))tounderset("Lactic acid")(CH_(3)-underset(OH)underset(|)overset(H)overset(|)C-COOH)`
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ICSE-ALDEHYDES, KETONES AND CARBOXYLIC ACIDS-EXERCISE (PART-I OBJECTIVE QUESTIONS)
  1. The reaction of benzaldehyde with alkali gives

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  2. The compound which does not give formaldehyde on heating or distillati...

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  3. A cyanohydrin of a compound X on hydrolysis gives lactic acid. The X i...

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  4. The reaction of formaldehyde with Grignard's reagent followed by hydro...

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  5. IUPAC name of CH(3)CH(2)CH(2)CH(CH(3))COCH(3) is

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  6. IUPAC name of CH(3)-underset(CH(3))underset(|)C=CH-underset(O)underset...

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  7. The compound which does not give iodoform test is

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  8. The compound which does not give iodoform on treatment with NaOH and i...

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  9. When phenol is treated with CHCl(3) and NaOH, the product formed is

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  10. In the following reaction product 'P' is R-overset(O)overset(||)C-Cl...

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  11. Bakelite is a product of reaction between

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  12. The reaction, 2CH(3)CHOoverset(Al(OC(2)H(5))(3))toCH(3)COOC(2)H(5) i...

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  13. Tollen's reagent is

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  14. Hydrolysis of ozonide of but-1-ene gives

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  15. The reagent used to convert CHequivCH.CH(2)CH(3) to CH(3)COCH(2)CH(3) ...

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  16. The boiling point of acetic acid is higher than expected from its mole...

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  17. Acetic acid is a weak acid because

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  18. The correct order of increasing acidic strength is …..

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  19. Compound Ph-O-overset(O)overset(||)C-Ph can be prepared by the reactio...

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  20. Carboxylic group shows acidic character because

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