Classification of Functional Group

Q. Define functional groups and give two examples with the structural formula of the following: [5 MARKS]
(i) ketone (ii) alcohols (iii) aldehydes.

Q.

Why does hydrogen gas burn with pop sound?

Q.

What is the full name of ${\mathrm{CH}}_4$?

Q. The functional group present in the given compound is ketone.

1. False
2. True

Q. The structural formula of ethyl ethanoate is

1. 
2. 
3. 
4. 

Q.

Write the formulae of the compounds and name the functional groups present in each of them:
(i) Ethanoic acid

(ii) Propanone

(iii) Nitromethane

Q. (a)
How would you name the following compounds?
(i) $C{H}_3-C{H}_2-Br$

(b)
How would you name the following compounds?

(c)
How would you name the following compounds?

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) In organic compounds, which part largely determines the physical and chemical properties.
(b) Write chemical equation to represent the reaction of ethanol with acidified solution of potassium dichromate.

Q. What is the ratio of hydrogen atoms present in hept-2-yne to that in but-2-ene?

1. 3:4
2. 5:2
3. 6:5
4. 3:2

Q. The IUPAC name of the compound CH3−CH2−CH=CH−CH2−CH3 is .

Q. is used as the primary suffix in the nomenclature of the compound $C{H}_2=CH-C{H}_2-C{H}_3$.

1. -ane
2. -yne
3. -ene

Q. The molecular formula of acetic acid is ___________.

1. $HCOOH$
2. $C{H}_3-C{H}_3$
3. $C_6{H}_6$
4. $C_2{H}_{4}O2$

Q. Match the functional groups with their general notation.

1. $-OH$
2. $-CHO$
3. $-C=O$
4. $-COOH$

Q.

Define the functional group and give 2 examples. Give the general formula

Aldehyde.

Q. Oct-1-yne has the same number of hydrogen atoms as of __________.

1. hept-1-ene
2. hex-1-ene
3. pent-1-ene
4. but-1-ene

Q.

For cutting or welding of metals, oxygen gas is combined with

1. methane

2. acetylene

3. butane

4. alcohol

Q. The functional group in butan-1-ol is:

1. -OH
2. -COOH
3. -CHO
4. -NH₂

Q. The structural formula of ethyl ethanoate is

1. 
2. 
3. 
4. 

Q. Oct-1-yne has the same number of hydrogen atoms as of __________.

1. hex-1-ene
2. but-1-ene
3. hept-1-ene
4. pent-1-ene

Q. In the reaction of sodium carbonate with ethanoic acid, which gas is produced in this reaction?

1. Carbon dioxide
2. Hydrogen
3. Oxygen
4. Methane

Q. What is the name of the compound given below?

1. But-2-ene
2. But-1-yne
3. Butane
4. Butene

Q. A hydrocarbon with five carbon atoms and a double bond between the second and the third carbon atom is named as .

1. pent-2-ene
2. hept-3-ene
3. hept-2-ene
4. pent-3-ene

Q.

Q. The IUPAC name of the given compound is ________.

Q.
What is the name of the above compound?

Q. The functional group present in the given compound is ________.

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

Q. What is the name of the compound given below?

1. But-2-ene
2. But-1-yne
3. Butene
4. Butane

Q.

Alkenes are also called _______.

1. paraffins

2. olefins

3. acetylenes

4. None of these

Q.

The functional group of ethanol and ethanal respectively are:

1. -OH and -C=O

2. -OH and -CHO

3. -CHO and -C=O

4. -C=O and -CHO