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Anhydroys CrO(3) is a mild oxidant and i...

Anhydroys `CrO_(3)` is a mild oxidant and it can oxidise

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

Both (A) and (R) is false

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-ALDEHYDES AND KETONES-Objective exercise -4 (Assertion (A) & Reason (R) Type Questions :)
  1. (A) Among the carbonyl compounds, formaldehyde is the most reactive to...

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  2. (A) Fridel-Crafts acylation gives an aromatic ketone from benzene (...

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  3. (A) : Acetaldehyde forms hemiacetal with CH(3) OH in the presence of ...

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  4. (A) : Acetone gives yellow precipitate with iodine and alkali (R) : ...

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  5. (A) : To prepare aldehydes from primary alcohols , acidified KMnO4 " ...

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  6. (A) : Acetaldehyde and acetone can be distinguished by using 2,4 DNP....

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  7. (A) alpha-Hydrogen atoms in aldehdes and ketones are acidic. (R) The...

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  8. (A) Benzaldehyde is more reactive than acetaldehyde towards nucleophil...

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  9. (A) 2,2-Dimethylpropanal undergoes Cannizzaro reaction with conc. NaOH...

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  10. (A) Benedicts reagent can be used to distinguish benzaldehyde from ace...

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  11. (A) Aldol condensation of acetone can be catalysed both by acid (or) b...

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  12. (A) Aldehydes are reduced to alkanes in the presence of Zn/Hg and Conc...

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  13. (A) Aromatic aldehydes are more reactive than aliphatic aldehydes. (...

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  14. (A) R-overset(O)overset(||)(C)-Cl fails to give ketone when treated wi...

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  15. (A) Aldehydes on reaction with hydroyxl amine to form aldoximes. (R)...

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  16. (A) Aldehydes & ketones on shaking with a saturated solution of NaHSO(...

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  17. (A) Reaction of benzaldehyde with formaldehyde in presence of base is ...

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  18. (A) C Cl(3)-CHO on treatment with an alkali to form chloroform and for...

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  19. (A) Acetic acid does not give haloform test. (R) Acetic acid has no ...

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  20. Anhydroys CrO(3) is a mild oxidant and it can oxidise

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