Organic Chemistry Test

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Organic Chemistry Test - 6

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Weekly Quiz Competition

Question 1
1 / -0

What is added to industrial ethanol to make it unsuitable for human consumption?

A
Benzene

B
Chlorine

C
Methane

D
Methanol

Solution

Methanol is used to denature industrial ethanol, i.e. to add the poisonous substance to ethanol to make it unsuitable for human consumption.
Question 2
1 / -0

Soap helps in washing by

A
removing the hardness of water

B
increasing the density of water

C
decreasing the surface tension of water

D
none of the above

Solution

None of the above given options are correct for washing action of soaps.
Question 3
1 / -0

Why is ethanoic acid called glacial acetic acid?

A
Because it gets denatured easily.

B
Because it freezes during winter in cold climates.

C
Because it oxidises when it reacts with moisture.

D
Because it is used as a preservative.

Solution

Ethanoic acid is called glacial acetic acid because it freezes during winter in cold climates.
Question 4
1 / -0

Which of the following is the molecular name of the compound 'H₃CCOCH₂CH₃'?

A
Propanoic acid

B
Butanone

C
Butanal

D
Propanal

Solution

The molecular name of the compound 'H₃CCOCH₂CH₃' is butanone.
Question 5
1 / -0

Vinegar is an aqueous solution of

A
oxalic acid

B
citiric acid

C
acetic acid

D
hydrochloric acid

Solution

Vinegar is no less than 4% acetic acid by volume, making acetic acid the main component of vinegar apart from water.
Question 6
1 / -0

Which of the following is incorrect about esters?

A
It is used in making perfumes.

B
It is used as flavouring agent.

C
It is used in preparation of soap.

D
It is used as an antiseptic.

Solution

Esters are not used as an antiseptic.
Question 7
1 / -0

Which of the following is a carboxylic acid?

A
H₃C–CH₂ – CH₂ – Cl

B
H₃C – CH₂ – CHO

C
H₃C – CO – CH₃

D
H₃C – CH₂ – COOH

Solution

H₃C – CH₂ – COOH is a carboxylic acid.

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Organic Chemistry Test - 6

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Organic Chemistry Test - 6

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Question 1

Benzene

Chlorine

Methane

Methanol

Solution

Question 2

removing the hardness of water

increasing the density of water

decreasing the surface tension of water

none of the above

Solution

Question 3

Because it gets denatured easily.

Because it freezes during winter in cold climates.

Because it oxidises when it reacts with moisture.

Because it is used as a preservative.

Solution

Question 4

Propanoic acid

Butanone

Butanal

Propanal

Solution

Question 5

oxalic acid

citiric acid

acetic acid

hydrochloric acid

Solution

Question 6

It is used in making perfumes.

It is used as flavouring agent.

It is used in preparation of soap.

It is used as an antiseptic.

Solution

Question 7

H3C–CH2 – CH2 – Cl

H3C – CH2 – CHO

H3C – CO – CH3

H3C – CH2 – COOH

Solution

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H₃C–CH₂ – CH₂ – Cl

H₃C – CH₂ – CHO

H₃C – CO – CH₃

H₃C – CH₂ – COOH