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Carbon and it's compound

Total questions: 58

Worksheet time: 31mins

Name
Class
Date
1.

Carbon's electronic configuration is

a)

2,2,2

b)

2,4

c)

1,1,4

d)

3,2,1

2.

In covalent bonding electrons are

a)

Shared

b)

Transferred

c)

Donated

d)

Lost

3.

Which of the following are saturated hydrocarbons

a)

Alkanes

b)

Alkenes

c)

Alkynes

d)

All of the above

4.

Name the compound with formula C2H4

a)

Methane

b)

Ethane

c)

Propane

d)

Ethene

5.

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

a)

Superposition

b)

Catenation

c)

Isomerisation

d)

Halogenation

6.

Carbon is

a)

divalent

b)

trivalent

c)

tetravalent

d)

pentavalent

7.

How many bonds will a C atom form?

a)

1

b)

2

c)

3

d)

4

8.

Because carbon has 4 valence electrons

a)

it can form up to 4 covalent bonds

b)

it can form ionic bonds

c)

it can form only double bonds

d)

it can form covalent bonds with H only

9.

A functional group mainly determines the....

a)

Physical properties

b)

Chemical properties

c)

Both of them

d)

None of the above

10.

The difference in formula and molecular masses of CH3OH and C2H5OH is

a)

CH3 and 16u

b)

CH4 and 18u

c)

CH2 and 14u

d)

CH3 and 16u

11.

Which of the following does not belong to the the same homologous series?

a)

CH4

b)

C2H6

c)

C3H8

d)

C4H8

12.

Carbon exists in the atmosphere in the form of

a)

Carbon dioxide only

b)

Carbon monoxide only

c)

Coal

d)

Carbon dioxide and carbon monoxide in traces

13.

Carbon's electronic configuration is

a)

2,2,2

b)

2,4

c)

1,1,4

d)

3,2,1

14.

The amount of carbon in the earth's crust

a)

0.03%

b)

0.01%

c)

0.02%

d)

0.00%

15.

In covalent bonding electrons are

a)

Shared

b)

Transferred

c)

Donated

d)

Lost

16.

Covalent compound are mettalic in nature

a)

true

b)

false

17.

Isomers have

a)

same structure and different formula

b)

different formula different structure

c)

same formula different structure

d)

same structure same formula

18.

Benzen always form a

a)

Straight chain structure

b)

Ring or closed structure

c)

Parallel structure

d)

branched structure

19.

Benzen Formula is

a)

C6H12

b)

C6H8

c)

C8H6

d)

C6H6

20.

Atomic No. of Carbon,No. of Electron,No. of Proton,No of electron is

a)

12

b)

7

c)

6

d)

4

21.

Prefix But is used when no. of carbon are

a)

1

b)

3

c)

4

d)

5

22.

Hetero-atom in C6H1206

a)

Carbon

b)

Hydrogen

c)

Oxide

d)

Oxygen

23.

General formula of Alkane is

a)

CnH2n+4

b)

CnH2n+2

c)

CnH2n

d)

CnH2n-2

24.

One Bond( - ) means

a)

1 electron

b)

3 electron

c)

2 electron

d)

1 x 2 e + 1e

25.

From which of the following substance pencil lead is formed?

a)

Charcoal

b)

Wood

c)

Lead

d)

Graphite

26.

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

a)

Superposition

b)

Catenation

c)

Isomerisation

d)

Halogenation

27.

Cation is formed when

a)

Atom gains electrons

b)

Atom loses electrons

c)

Proton is lost by the atom

d)

Atom shares electrons

28.

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

29.

Compounds that are composed of the same number and type of atoms but have them arranged in different ways are ___________.

a)

isomers

b)

isotopes

c)

polymers

d)

alkanes

30.

Alkanes are saturated hydrocarbons. What does this mean?

a)

There are some C=C double bonds present in the molecule

b)

All C atoms are bonded by single covalent bonds

c)

They are very reactive

d)

They have both double and single bond between carbons

31.
The molecular formula for Heptane is
a)
C4H10
b)
C8H18
c)
C5H12
d)
C7H16
32.

Carbon has _______ valence electrons.

a)

3

b)

4

c)

+/-4

d)

0

33.

Cation is formed when

a)

Atom gains electrons

b)

Atom loses electrons

c)

Proton is lost by the atom

d)

Atom shares electrons

34.

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

35.

Which of the followings is the major constituent of the liquefied petroleum gas?

a)

Ethane

b)

Methane

c)

Propane

d)

Butane

36.

From which of the following substance pencil lead is formed?

a)

Charcoal

b)

Wood

c)

Lead

d)

Graphite

37.

-Methane is a major constituent of

a)

CNG

b)

Bio-gas

c)

Natural Gas

d)

All the above

38.

Carbon is

a)

divalent

b)

trivalent

c)

tetravalent

d)

pentavalent

39.

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

40.

How many bonds will a C atom form?

a)

1

b)

2

c)

3

d)

4

41.
Which consists of carbon atoms?
a)
graphite
b)
diamond
c)
fullerene
d)
all of these
42.
Which has every carbon atom covalently bonded to four other atoms?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
43.
Which is used as a cutting tool and in jewelry?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
44.

Carbon is arranged in what shape to make diamond?

a)

Triangle

b)

Hexagon

c)

Octahedron

d)

Tetrahedron

45.

Cation is formed when

a)

Atom gains electrons

b)

Atom loses electrons

c)

Proton is lost by the atom

d)

Atom shares electrons

46.

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

47.

Covalent compounds

a)

have high melting and boiling point

b)

are mostly soluble in water

c)

are formed between atoms of metals and non-metals

d)

are formed by the sharing of electrons in the bonding atoms.

48.

The carbons circled in red...

a)

are double bonded

b)

are sharing two pairs of electrons

c)

are sharing three pairs of electrons

d)

Are sharing three electrons

49.

Prefix 'prop' is used when no. of carbon are

a)

1

b)

3

c)

4

d)

5

50.

Which of the following is/are alkyne?

a)

C3H4

b)

C4H8

c)

C5H12

d)

C6H10

51.

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

52.

Which of the following is the functional group of an alkene?

a)

C-C

b)

C=C

c)

-OH

d)

-COOH

53.

A hydrocarbon should have minimum how many carbon atoms to show isomerism?

a)

Three

b)

Four

c)

Five

d)

Six

54.
The molecular formula for Heptane is
a)
C4H10
b)
C8H18
c)
C5H12
d)
C7H16
55.

Alkanes are saturated hydrocarbons. What does this mean?

a)

There are some C=C double bonds present in the molecule

b)

All C atoms are bonded by single covalent bonds

c)

They are very reactive

d)

They have both double and single bond between carbons

56.

The classes of organic compounds found in all living things are

a)

vitamins and minerals

b)

halogen compounds, alcohols, organic acids, and esters

c)

simple carbohydrates and hydrocarbons

d)

carbohydrates, lipids, proteins, and nucleic acids

57.

General formula of Alkane is

a)

CnH2n+4

b)

CnH2n+2

c)

CnH2n

d)

CnH2n-2

58.

Which of the following compounds is a neutral oxide?

a)

Carbon(IV) oxide

b)

Carbon(II) oxide

c)

Sulphur (IV) oxide

d)

Sulphur (VI) oxide

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