Introduction to Carboxylic Acids

Q. Carboxylic acids have a group in its molecule.

1. -OH
2. R-O-R
3. -COOH
4. -CHO

Q. Match the following functional groups with their names:

1. P-1; Q-2; R-3; S-4
2. P-2; Q-4; R-1; S-3
3. P-4; Q-2; R-1; S-3
4. P-3; Q-1; R-3; S-4

Q.

A dilute solution of ethanoic acid in water is very useful in the kitchen - as a pickling and flavouring agent. It is called:

1. Tincture of iodine

2. Fehling's solution

3. Vinegar

4. Tollen's reagent

Q. Which of the following does not contain $-COOH$ group?

1. All have $-COOH$ group
2. Benzoic acid
3. Picric acid
4. Aspirin

Q.

Candles may contain

1. Beeswax

2. paraffin wax

3. both a and b

4. Neither a nor b

Q. Paraffin wax is a/an .

1. ester
2. hydrocarbon
3. acid
4. alcohol

Q. Match the following:

Chemical compound Natural resource

1. Tamarind
2. Red ant
3. Citrus fruit
4. Vinegar

Q. Methanoic acid and Ethanoic acid can be differentiated by:

1. $\text{Fehling's test}$
2. $\text{Iodoform test}$
3. $\text{Tollens' reagent}$
4. $NaHC{O}_3\text{test}$

Q. When the mixture of $[A+B+C]$ is dissolved in $NaHC{O}_3,$ A dissolve in $NaHC{O}_3,$ $BandC$ remains as a residue. After that residue dissolves in $aq.NaOH,C$ dissolves in it and $B$ remains as residue. $A,B,C$ can be respectively.

1. 
2. 
3. 
4. 

Q. Which of the following is correct?

1. Formic acid is used in medicine for the treatment of gout
2. Propanoic acid is used as an antiseptic in the preservation of fruit juice
3. Ethanoic acid is a coagulating agent in rubber industry
4. None of these