Carbon and its Compounds Test

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Carbon and its Compounds Test - 13

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Weekly Quiz Competition

Question 1
1 / -0

The IUPAC name of the compound $$CH_3CH = CHC \equiv CH$$ is :

A
pent-4-yn-2-ene

B
pent-3-en-1-yne

C
pent-2-en-4-yne

D
pent-1-yn-3-ene

Solution

The IUPAC name of the compound $$CH_3CH = CHC \equiv CH$$ is pent-3-en-1-yne.

$$\overset{5}{C}H_3 \overset{4}{C}H = \overset{3}{C}H\overset{2}{C} \equiv \overset{1}{C}H$$

Hence, the correct option is B.
Question 2
1 / -0

Which of the following pairs of compounds of carbon will undergo combustion as well as addition reactions?

A
$$CH_4$$ and $$C_2H_6$$

B
$$C_2H_6O$$ and $$C_3H_8O$$

C
$$C_2H_4O_2$$ and $$C_3H_6O$$

D
$$C_2H_2$$ and $$C_3H_6$$

Solution

$$C_2H_2$$ and $$C_3H_6$$ will undergo combustion as well as addition reactions. These are unsaturated compounds with double/triple bonds. Hence they will undergo additional reactions.
Question 3
1 / -0

Name the structure.

A
Cyclohexane

B
Cycloheptane

C
1-Methylhexane

D
Hexane

Solution

The given structure is cyclohexane. Hexane shows six carbons with no carbon-carbon double bonds. Cyclo shows that they are in a ring.
Question 4
1 / -0

Two neighbours of Homologous series differ by:

A
$$CH$$

B
$$CH_2$$

C
$$CH_3$$

D
$$CH_4$$

Solution

A homologous series is a series of compounds in which each member differs from the next/previous by $$CH_{2}$$ or 14 mass units.
Hence, option B is correct.
Question 5
1 / -0

The atomic number of carbon is :

A
5

B
6

C
12

D
14
Question 6
1 / -0

How many bonds does carbon atom form at a time?

A
3

B
2

C
4

D
1

Solution

The carbon atom has a maximum valency of 4, so it is capable of forming 4 bonds with other atoms at a time.
So, the correct option is $$C$$.
Question 7
1 / -0

The primary suffix for $$C$$ $$\equiv $$ $$C$$ bond is:

A
-yne

B
-ane

C
-ene

D
None of the above

Solution

In unsaturated carbon compounds, a triple bond is written as alkyne with the primary suffix -yne like ethyne, propyne, etc.
for alkane, we use the suffix-ane.
for alkene, we use the suffix-ene.
Question 8
1 / -0

Carbon-12 atom has :

A
6 electrons, 6 protons, and 6 neutrons

B
6 electrons, 12 protons, and 6 neutrons

C
12 electrons, 6 protons, and 6 neutrons

D
18 electrons, 6 protons, and 6 neutrons

Solution

The mass number of $$carbon-12$$ is $$12$$ and the atomic number of carbon is $$6$$. Therefore, the number of protons is $$6$$ and electrons are $$6$$ as the number of protons and electrons are the same in the neutral atom. The number of neutrons is equal to the difference of a mass number and atomic number, i.e., $$12-6=6$$.
So carbon-$$12$$ atom has $$6$$ electrons, $$6$$ protons, $$6$$ neutrons.
Hence, option $$A$$ is correct.
Question 9
1 / -0

Chemical process that converts one member of a homologous series to the next member is called as:

A
homologation reaction

B
replacement reactions

C
homogolous reaction

D
decomposition reaction

Solution

A homologation reaction is a chemical process that converts one member of a homologous series to the next member.
Question 10
1 / -0

The number of times the substituent group occurs is indicated by :

A
suffix

B
prefix

C
both A and B

D
none of above

Solution

If the same substituent occurs more than once, the location of each point on which the substituent occurs is given. In addition, the number of times the substituent group occurs is indicated by a prefix (di, tri, tetra, etc.).
Option $$B$$ is correct.

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Re-Attempt Weekly Quiz Competition

Carbon and its Compounds Test - 13

Result

Carbon and its Compounds Test - 13

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Question 1

pent-4-yn-2-ene

pent-3-en-1-yne

pent-2-en-4-yne

pent-1-yn-3-ene

Solution

Question 2

$$CH_4$$ and $$C_2H_6$$

$$C_2H_6O$$ and $$C_3H_8O$$

$$C_2H_4O_2$$ and $$C_3H_6O$$

$$C_2H_2$$ and $$C_3H_6$$

Solution

Question 3

Cyclohexane

Cycloheptane

1-Methylhexane

Hexane

Solution

Question 4

$$CH$$

$$CH_2$$

$$CH_3$$

$$CH_4$$

Solution

Question 5

5

6

12

14

Question 6

3

2

4

1

Solution

Question 7

-yne

-ane

-ene

None of the above

Solution

Question 8

6 electrons, 6 protons, and 6 neutrons

6 electrons, 12 protons, and 6 neutrons

12 electrons, 6 protons, and 6 neutrons

18 electrons, 6 protons, and 6 neutrons

Solution

Question 9

homologation reaction

replacement reactions

homogolous reaction

decomposition reaction

Solution

Question 10

suffix

prefix

both A and B

none of above

Solution

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