Functional Group

Q.

The functional group in aldehydes is

1. –COOH

2. –COOR

3. -OH

4. –CHO

Q.

What is the general formula of Amides?

Q.

What is the name of the functional group -COOH?

1. Aldehyde

2. Ketone

3. Alcohol

4. Carboxylic acid

Q. Give the names of the following functional groups:
—OH, >C = O, —CHO, —COOH

Q.

On what factors does the strength of an acid depends ?

Q.

Aldehydes and ketones both contain the carbonyl group.

1. True

2. False

Q. Which functional group is present in the following compound: $C{H}_3-C{H}_2-COOH$

1. Aldehyde
2. Ketone
3. Alcohol
4. Carboxylic acid

Q.

The functional group in an alcohol is

1. -COOH

2. -CHO

3. –OH

4. 

Q.

Name the Second member of carboxylic acid.

Q.

-CHO represents the functional group of:

1. aldehydes

2. esters

3. carboxylic acids

4. alcohols

Q.

The functional group in methanol and methanal respectively are :

1. –CHO, –OH

2. –OH, –CHO

3. –OH, –COOH

4. –CHO, –COOH

Q.

What are the functional groups present in the following compound?

1. Ketone

2. Carboxylic acid

3. Ketone and carboxylic acid

4. Aldehyde

Q.

The functional group in methanol and meth`anal respectively are:

1. –OH, –COOH

2. –CHO, –COOH

3. –CHO, –OH

4. –OH, –CHO

Q. An atom or a group of atoms attached to an alkyl group changing it's properties, which takes part in most of the chemical reactions is called a/an _______.

1. inert group
2. ethyl group
3. radioactive group
4. functional group

Q. Which functional group is present in the following compounds?
a. 2-Methylpentanal
b. 2-Pentanone
c. 3-Ethylhexanoic acid

Q. In which of the following options functional groups are correctly matched with their corresponding formulae.

1. $1\to A,2\to C,3\to D,4\to B$
2. $1\to B,2\to C,3\to A,4\to D$
3. $1\to C,2\to D,3\to A,4\to B$
4. $1\to D,2\to C,3\to A,4\to B$

Q. What are the functional groups present in following compound?

1. Ketone
2. Carboxylic acid
3. Aldehyde
4. Both (A) and (B)

Q.

What is name of functional group -CHO?

1. Alcohol

2. Aldehyde

3. Ketone

4. Carboxylic acid

Q. Butanone is a four-carbon compound. The functional group present is:

1. carboxylic acid
2. aldehyde
3. ketone
4. alcohol

Q. Thiol group is present in :

1. cystine
2. cysteine
3. methionine
4. cytosine

Q. 2 mL each of concentrated $\text{HCl},{\text{HNO}}_3$ and a mixture of concentrated $\text{HCl}$ and concentrated ${\text{HNO}}_3$ in the ratio of 3 : 1 were taken in test tubes labelled as A, B and C. A small piece of gold was put in each test tube. No change occurred in test tubes A and B but the metal got dissolved in test tube C respectively. Give reason why this observation was made.

Q. On adding $N{a}_{2}C{O}_3$ in alkaline solution, which gas is not evolved?

1. $C{O}_2$
2. $CO$
3. $C{H}_4$
4. None of the above

Q. 1) Name the functional group present in each of the following compounds:
$$\begin{gathered} \left(i\right)C{H}_{3}COC{H}_3 \\ \left(ii\right)C_2{H}_{5}CHOOH \end{gathered}$$

Q. Which of the following contains alcoholic functional group?

1. $H-O-H\stackrel{\stackrel{H}{|}}{\underset{\underset{H}{|}}{C}}-H$
2. ${CH}_2=CH-{CH}_{2}OH$
3. ${CH}_3-\stackrel{\stackrel{H}{|}}{\underset{\underset{{CH}_3}{|}}{C}}-O-H$
4. All of the above

Q.

Give the trivial (common) names and the IUPAC names of the following:​

(b) $C_2{H}_4$​

Q.

Identify the substance underlined in the following case

An organic compound containing $–COOH$ functional group

Q. Octane contains ________ carbon and ________ hydrogen atoms.

1. 8, 16
2. 8, 18
3. 8, 20
4. 8, 14

Q.

What is the name of funcctional group -COOH?

1. Aldehyde

2. Alcohol

3. Ketone

4. Carboxylic acid

Q. Name the reagent which is used in the conversion of -COCl group into -CHO group.

Q.

What are the functional groups present in the given compound?

1. Ketone

2. Carboxylic acid

3. Aldehyde

4. Ester