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Which of the following reagents is usefu...

Which of the following reagents is useful to distinguish between HCOOH and `CH_2 COOH`

A

Fehling's solution

B

Potassium permanganate solution

C

Tollen's reagent

D

Iodoform reaction

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
a) Formic acid reduces fehling solution to red ppt of `Cu_2 O`
b) `HCOOH + 2CuO to Cu_2 O + CO_2 + H_2 O `
Formic acid decolorized acidified `KMnO_4`
`2KMnO_4 + 3H_2 SO_4 + 5HCOOH to K_2 SO_4 2MnSO_4 + 5CO_2 + 8H_2 O`
c) `HCOOH + Ag_2 O overset(Delta)to underset("silver mirror")(2Ag) + CO_2 + H_2 O`
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AAKASH SERIES-CARBOXYLIC ACIDS -LEVEL-II LEXTURE SHEET (Exericse-I) (Single or more than one option questions)
  1. Which of the following is the weakest acid ?

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  2. Formic acid is obtained when

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  3. Acetic acid can be prepared by:

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  4. When acetamide is hydrolysed by boiling with water the product obtaine...

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  5. The compound formed by the acid hydrolysis of ethyl acetate is :

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  6. R-CH2 -CH2 OH can be converted into RCH2 CH2 COOH. The correct sequenc...

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  7. Optical activity is expected for :

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  8. Formic acid gives the test of :

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  9. Which of the following reagents is useful to distinguish between HCOOH...

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  10. CH3 CH2 COOH + Br2 overset("Red phosphrous")to

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  11. Which of the following functional group(s) when attached to the para p...

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  12. In which of the following compounds carbon oxygen bond length is short...

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  13. Which of the following acids is the strongest

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  14. Which of the following is/are correct regarding acidic strength.

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  15. Which of the following statements is correct regarding the hydrolysis ...

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  16. The Product is

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  17. Which of the following reactions is correct.

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  18. Which of the following esters is hydrolysed at a fastest rate than oth...

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  19. Which of the following esters undergo alkaline hydrolysis at a fastest...

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  20. Which of the following reactions is/are correctly represented

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