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Which of the following reagents can be u...

Which of the following reagents can be used to oxidise primary alcohols to aldehydes ?

A

`CrO_(3)` in anhydour medium

B

pyridinium chlorochromate

C

`KMnO_(4)` in acidic medium

D

heating in presence of Cu at 573K

Text Solution

Verified by Experts

The correct Answer is:
C
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OP TANDON-ALCOHOLS, PHENOLS AND ETHERS-OBJECTIVE QUESTIONS (LEVEL-A)
  1. Which of the following reacts fastest with conc. HCl ?

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

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  3. Which of the following reagents can be used to oxidise primary alcohol...

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  4. An organic liquid A containing C,H and O has a pleasant odour with a b...

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  5. In the following sequence of reactions, CH(3)CH(2)OHoverset(P+I(2))(...

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  6. A liquid was mixed with ethanol and a drop of concentrated H(2) SO(4) ...

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  7. An organic compound 'X' on treatment with pyridinium chlorochromate in...

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  8. Methyl alcohol when reacted with carbon monoxide using cobalt or rhodi...

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  9. (X) is :

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  10. CH(3)COOHoverset(LiAlH(4))(rarr)(A), (A)+CH(3)COOHoverset(H(3)O^(+))(r...

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  11. Which among the following compounds will give a secondary alcohol on r...

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  12. The reagent most suitable for converting a primary alcohol into an ald...

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  13. In the following reaction A is

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  14. When CH(2)=CH -CO OH is reduced with LiAlH(4) the compound obtained wi...

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  15. The compound on dehydrogenation gives a ketone. The original compound ...

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  16. R-CH(2)-CH(2)OH can be converted into RCH(2)CH(2)COOH the correct seq...

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  17. Which of the following will produce only one product on reduction with...

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  18. The hydrolysis of 2-bromo-3-methylbutane by S(N^(1)) mechanism gives m...

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  19. The strongest acid is :

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  20. An organic compound 'X' is oxidised by using acidified K(2)Cr(2)O(7). ...

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