Classification of Functional Groups

Q.

Give examples of compounds whose
(a) empirical formula is the same as the molecular formula.
(b) empirical formula is different from the molecular formula.

Q.

What is meant by the term functional group?

Q. are alkanes, alkenes, alkynes functional groups. give reason

Q.

What is meant by a functional group in an organic compound? Give the structural formula of the functional group in Ethyl alcohol?

Q.

What is a functional group? Give examples of four different functional groups.

Q.

(a) Write the formula of the functional group present in carboxylic acids.
(b) Name the functional group present in $C{H}_3-C\equiv CH.$
(c) Name the functional groups present in the following compounds :
(i) $C{H}_3-CHO$ (ii) $C{H}_3-C{H}_2-COOH$ (iii) $C{H}_3-\stackrel{O}{\stackrel{||}{C}}-C{H}_3$ (iv) $C{H}_3-C{H}_2-C{H}_2-OH$

Q. An atom or a group of atoms that provide specific properties to a carbon compound is known as a/an ___________.

1. alkyl group
2. functional group
3. ethyl group
4. homologue

Q.

Which of the following molecular formula corresponds to ethyl butanoate ester ?

(a) $C_5{H}_{10}{O}_2$ (b) $C_6{H}_{12}{O}_2$ (c) $C_7{H}_{14}{O}_2$ (d) $C_8{H}_{18}{O}_2$

Q.

Name the Third member of aldehyde series.

Q.

What is the difference between a molecule and monomer ?

seems typically same....

Ques not under that particular chapter !!

Q. (a) Give the formula of:
(i) Liquid ammonia, and
(ii) Liquor ammonia
(b) What is liquor ammonia fortis?

Q.

Write the names of the following functional groups:

Q. If a hydrocarbon has four carbon atoms and has one carbon-carbon double bond then it would be an example of _______.

1. Saturated hydrocarbon
2. Alkene
3. Alkane
4. Alkyne

Q. Which one is the formula of formaldehyde?

1. $HCHO$
2. $C{H}_{3}CHO$
3. $C{H}_{3}COOH$
4. $C{H}_{3}OH$

Q. Identify the functional group present in aldehydes.

1. -COX
2. -COOH
3. -CHO
4. -OH

Q.

The presence of which atom makes the given functional group easy to oxidise?

1. Both A & C

2. Carbon

3. Oxygen

4. Hydrogen

Q. $C{H}_{3}C{H}_{2}C{H}_{2}COOH$

1. carbonate
2. carboxylic acid
3. alcohol
4. carboxylate

Q. In a homologous series, the successive members differ by a mass of ____ u.

1. 15
2. 16
3. 13
4. 14

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. radioactive group
3. functional group
4. ethyl group

Q. Match the following functional groups with their names:

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

Q. Which one is the formula of formaldehyde?

1. $C{H}_{3}CHO$
2. $C{H}_{3}COOH$
3. $C{H}_{3}OH$
4. $HCHO$

Q. Which of the following statement is true for aldehydes and ketones?

1. Aldehydes are formed only for carbon compounds with less than 5 carbon atoms.
2. Both exhibit similar physical properties.
3. Aldehydes are considered as subsets of ketones.
4. The carbonyl group for aldehydes is always at the end of the molecule.

Q. What is the name of compound possessing (-CHO) functional group?

1. Alcohol
2. Aldehyde
3. Amide
4. Ketone

Q. Sodium hydroxide is generally used for:

1. preparing chlorates
2. all the above
3. causticising purposes
4. mercerizing cotton

Q. An unsaturated hydrocarbon consists of:

1. Carbon - carbon double or carbon - carbon triple bond(s)
2. Carbon - oxygen double bond
3. Only carbon - carbon double bond(s)
4. Only carbon - carbon triple bond(s)