Carbon And Its Compounds Test

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Carbon And Its Compounds Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following compounds is not considered an organic compound?

A
Urea

B
Vinegar

C
Baking soda

D
Citric acid

Solution

Carbonates and bicarbonates of metals are not considered organic compounds.
They resemble inorganic salts in their chemical behaviour and hence, they are classified and studied as inorganic compounds.

Question 2

1 / -0

Match the trivial names of the organic compounds mentioned in the first column with their molecular formulae mentioned in the second column.

Common Name	Molecular Formula
(a) Propyl chloride	1. CH₃CI
(b) Propyl bromide	2. C₆H₁₃l
(c) Methyl chloride	3. C₃H₇CI
(d) Hexyl iodide	4. C₃H₇Br

(a) - 3, (b) - 4, (c) - 1, (d) - 2

(a) - 4, (b) - 3, (c) - 1, (d) - 2

(a) - 3, (b) - 4, (c) - 2, (d) - 1

(a) - 1, (b) - 4, (c) - 3, (d) - 2

Solution

(CH₃Cl) The common name of this molecule is methyl chloride. There is one carbon atom in this compound, so its parent name is Methane. Since one chloro group is present in this compound, so its IUPAC name is chloro-methane.

(C₆H₁₃I) The common name of this compound is Hexyl iodide. Its IUPAC name is iodo-hexane.

(C₃H₇Cl) The common name of this compound is propyl chloride.

Number of carbon atoms = 3
Functional group: Chloro

Thus, the IUPAC name is Chloro-propane.

(C₃H₇Br) The common name of this compound is Propyl bromide. Its IUPAC name is bromo-propane.

Question 3
1 / -0

What is the largest number of isomers that pentane (C₅H₁₂) can have?

A
4

B
3

C
2

D
6

Solution

Pentane has three chain isomers: n-Pentane, Isopentane and Neopentane.
Question 4
1 / -0

Out of the following pairs of compounds, the unsaturated compounds are

A
C₂H₆ and C₄H₆

B
C₆H₁₂ and C₅H₁₂

C
C₄H₆and C₆H₁₂

D
C₂H₆ and C₄H₁₀

Solution

Alkanes are saturated hydrocarbons (C_nH2_n + 2), and alkenes (C_nH2_n) and alkynes (C_nH2_{n - 2}) are unsaturated hydrocarbons.

C₂H₆, C₅H₁₂ and C₄H₁₀are saturated hydrocarbons.

C₄H₆ and C₆H₁₂ are unsaturated hydrocarbons.
Question 5
1 / -0

Which of the following compounds is/are unsaturated hydrocarbon(s)?

(i) Propene
(ii) Benzene
(iii) Acetylene

A
(i) and (iii)

B
(i) and (ii)

C
(iii) only

D
(i), (ii) and (iii)

Solution

All the given options are unsaturated compounds.

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Carbon And Its Compounds Test - 1

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Carbon And Its Compounds Test - 1

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Question 1

Urea

Vinegar

Baking soda

Citric acid

Solution

Question 2

(a) - 3, (b) - 4, (c) - 1, (d) - 2

(a) - 4, (b) - 3, (c) - 1, (d) - 2

(a) - 3, (b) - 4, (c) - 2, (d) - 1

(a) - 1, (b) - 4, (c) - 3, (d) - 2

Solution

Question 3

4

3

2

6

Solution

Question 4

C2H6 and C4H6

C6H12 and C5H12

C4H6 and C6H12

C2H6 and C4H10

Solution

Question 5

(i) and (iii)

(i) and (ii)

(iii) only

(i), (ii) and (iii)

Solution

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C₂H₆ and C₄H₆

C₆H₁₂ and C₅H₁₂

C₄H₆and C₆H₁₂

C₂H₆ and C₄H₁₀