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Ethanol

Define a func...

Question

Define a functional group with two examples. Write the functional groups for
(i) alcohol
(ii) ketone
(iii) carboxylic acid

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Solution

A functional group may be defined as an atom or group of atoms present in a molecule, which largely determines its properties. For example, − CHO is an aldehydic functional group and − Br is a bromo functional group.

Functional groups for the following are:
(i) alcohol: − OH.
(ii) ketone: >C=O.
(iii) carboxylic acid: − COOH.

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

Write the structure of the functional group that belongs to the following classes: [5 MARKS]
(Any Five)
(i) Alcohol
(ii) Aldehyde

(iii) Ketone
(iv) Carboxylic acid
(v) Ester
(vi) Ether

Butanone is a four-carbon compound with the functional group

(a) carboxylic acid.

(b) aldehyde.

(c) ketone.

(d) alcohol.

Q. Question 2
Butanone is a four-carbon compound with the functional group:
(a) Carboxylic acid
(b) Aldehyde
(c) Ketone
(d) Alcohol

Q. (a) Which functional group do you think can be present in an organic compound having the molecular formula C₅H₁₀O₂? Write the formula of the organic compound.
(b) Give one example each of the compounds having the following functional groups:
(i) Aldehyde group
(ii) Alcohol group
(iii) Carboxylic acid group
(iv) Halo group
(c) Give one example each of the compounds having the following functional groups:
(i) Alkene group
(ii) Alkyne group

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