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The regent used in Gattermann -Koch alde...

The regent used in Gattermann -Koch aldehyde synthesis is

A

Pb / `"BaSO"_(4)`

B

alkaline`"KMnO"_(4)`

C

acidic `"KMnO"_4`

D

CO + HCl

Text Solution

Verified by Experts

The correct Answer is:
D
Gattermann koch aldehyde synthesis is formylation of benzene done using CO + HCl in anhy `AlCl_(3)` catalyst .
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NARAYNA-ALDEHYDES, KETONES & CARBOXYLIC ACIDS-EXERCISE -III
  1. CH(3) - CH(2) - C equiv CH underset(H(2)SO(4))overset("HgSO"(4))(rarr)...

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  2. R - CH = CH(2) + CO + H(2) underset("High pressure" ) overset("High te...

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  3. The regent used in Gattermann -Koch aldehyde synthesis is

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  4. What is the main reason for the fact that carboxylic acids can undergo...

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  5. On reductive ozonolysis yields

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  6. How will you convert butan -2-one to propanoic acid ?

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  7. Which of the following will form two isomers with semi carbazide

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  8. Schiff's reagent gives pink colour with

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  9. When is reduced with, the compound obtained will be

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  10. In a set of the given reactions, acetic acid yields a product C. CH(...

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  11. Which one of the following on treatment with 50% aqueous sodium hydrox...

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  12. Reduction of aldehydes and ketones into hydrocarbons using zinc amalga...

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  13. The product formed in aldol condensation is

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  14. Which of the following presents the correct order of the acidity in th...

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  15. Acetophenone when reacted with a base, C(2)H(5)ONa, yields a stable...

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  16. In a set of reactions m-bromobenzoic acid gave a product D. Identify t...

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  17. In the following reactions, (a) H(3)C-overset(CH(3))overset("| "...

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  18. Consider the reaction RCHO + NH(2)NH(2) rarr R - CH = N NH(2) What...

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  19. Consider the following reaction The product 'A' is

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  20. Reaction by which benzaldehyde cannot be prepared

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