Carbon and its Compounds Test

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Carbon and its Compounds Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following statements is true with regard to hydrogen? i. Hydrogen reacts to attain a duplet of electrons in its K shell. ii. Hydrogen always forms a single covalent bond. iii. Hydrogen can form a single and a double covalent bond.

A
(i)

B
(i) and (ii)

C
(i) , (ii) and (iii)

D
(i) and (iii)
Question 2
1 / -0

Which of the following compounds of carbon does not consist of ions?

A
CHCl₃

B
CaCO₃

C
NaHCO₃

D
Ca₂C
Question 3
1 / -0

Which of the following statements is not true? i. In the earth's crust carbon is present in the form of minerals. ii. In the atmosphere very less amount of carbon is present. iii. In the earth's crust very large amount of carbon is present.

A
(i)

B
(i) and (iii)

C
(iii)

D
(ii) and (iii)
Question 4
1 / -0

Two compounds 'A' and 'B' are isomers. Which of the following statements, regarding A and B, is true? i. Both will have same IUPAC name ii. Both will have same structure iii. Both are hydrocarbons iv. Both have same molecular formula

A
(i), (iii) and (iv)

B
(iii) and (iv)

C
(iv)

D
(iii)
Question 5
1 / -0

Which of the following compounds is an unsaturated hydrocarbon? i. Propane ii. Benzene iii. Acetylene

A
(i) and (iii)

B
(i) and (ii)

C
(iii)

D
(ii) and (iii)
Question 6
1 / -0

Which of the following bonds is very strong and hence very stable?

A
Carbon-Carbon bond

B
Carbon–Iodine bond

C
Carbon-Silicon bond

D
Carbon–Sulphur bond
Question 7
1 / -0

Which of the following statements is not true regarding alkenes?

A
Alkenes are hydrocarbons

B
They are unsaturated compounds

C
They can consist of more than one double bond

D
The number of hydrogen atoms is always double the number of carbon atoms
Question 8
1 / -0

Which of the following is the molecular formula of cyclobutane?

A
C₄H₁₀

B
C ₄H ₆

C
C ₄H ₈

D
C ₄H ₄
Question 9
1 / -0

Which of the following statements about graphite and diamond is true?

A
They have the same crystal structure

B
They have the same degree of hardness

C
They have the same electrical conductivity

D
They can undergo the same chemical reactions
Question 10
1 / -0

While cooking, if the bottom of the vessel is getting blackened on the outside, it means that

A
The food is not cooked completely

B
The fuel is not burning completely

C
The fuel is wet

D
The fuel is burning completely

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Carbon and its Compounds Test - 2

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Carbon and its Compounds Test - 2

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Question 1

(i)

(i) and (ii)

(i) , (ii) and (iii)

(i) and (iii)

Question 2

CHCl3

CaCO3

NaHCO3

Ca2C

Question 3

(i)

(i) and (iii)

(iii)

(ii) and (iii)

Question 4

(i), (iii) and (iv)

(iii) and (iv)

(iv)

(iii)

Question 5

(i) and (iii)

(i) and (ii)

(iii)

(ii) and (iii)

Question 6

Carbon-Carbon bond

Carbon–Iodine bond

Carbon-Silicon bond

Carbon–Sulphur bond

Question 7

Alkenes are hydrocarbons

They are unsaturated compounds

They can consist of more than one double bond

The number of hydrogen atoms is always double the number of carbon atoms

Question 8

C4H10

C 4H 6

C 4H 8

C 4H 4

Question 9

They have the same crystal structure

They have the same degree of hardness

They have the same electrical conductivity

They can undergo the same chemical reactions

Question 10

The food is not cooked completely

The fuel is not burning completely

The fuel is wet

The fuel is burning completely

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CHCl₃

CaCO₃

NaHCO₃

Ca₂C

C₄H₁₀

C ₄H ₆

C ₄H ₈

C ₄H ₄