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Carbon & Its Compound ST

Total questions: 20

Worksheet time: 7mins

Name
Class
Date
1.

Which of the following is the molecular formula of cyclobutane?

a)

C4H10

b)

C4H6

c)

C4H8

d)

C4H4

2.

The property of self-linkage among identical atoms to form long chain compounds is known

a)

Superposition

b)

Catenation

c)

Isomerisation

d)

Halogenation

3.

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

4.

From which of the following substance pencil lead is formed?

a)

Charcoal

b)

Wood

c)

Lead

d)

Graphite

5.

-Methane is a major constituent of

a)

CNG

b)

Bio-gas

c)

Natural Gas

d)

All the above

6.

Carbon is

a)

divalent

b)

trivalent

c)

tetravalent

d)

pentavalent

7.

Covalent bonds

a)

has low melting and boiling point

b)

are generally poor conductors of electricity

c)

has weak inter-molecular forces

d)

All of the above

8.

How many bonds will a C atom form?

a)

1

b)

2

c)

3

d)

4

9.
Which is used as a cutting tool and in jewelry?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
10.
Define the term allotropes
a)
Atoms with same proton number but different number of neutrons
b)
Atoms with same proton number but different mass number
c)
Atoms in different arrangement in structure
d)
Atoms in different arrangement and different physical form
11.
What structure is shown in the diagram?
a)
Diamond
b)
Graphite
c)
fullerene
12.

Carbon is arranged in what shape to make diamond?

a)

Triangle

b)

Hexagon

c)

Octahedron

d)

Tetrahedron

13.

Which of the following is an alkane?

a)

C3H6

b)

C4H8

c)

C5H12

d)

C6H12

14.

Which of the following compound is saturated hydrocarbon?

I CH3CH2CH2CH3

II CH3CHC(CH3)2

III CH3CH2CH(CH3)2

IV CH3CHCHCH3

a)

I and III

b)

II and IV

c)

I, II and III

d)

I, III and IV

15.

Benzene Formula is

a)

C6H12

b)

C6H8

c)

C8H6

d)

C6H6

16.

Prefix But is used when no. of carbon are

a)

1

b)

3

c)

4

d)

5

17.
Which compound is inorganic?
a)
Glucose (C₆H₁₂O₆)
b)
Ethane (C₂H₆)
c)
Carbon Dioxide (CO₂)
d)
Stearic Acid (C₁₈H₃₆O₂)
18.

The best definition of an isomer is _______________.

a)

Isomers are elements that have different numbers of neutrons

b)

Isomers are various types of plastics

c)

Isomers are any type of compound that burns

d)

Isomers are molecules that share the same molecular formula but have different structural shapes.

19.

This is an example of a

a)

straight carbon chain

b)

branched carbon chain

c)

carbon ring structure

20.

Name the hydrocarbon

a)

propane

b)

butene

c)

ethyne

d)

propene