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G10 ARYABHATTA-Ch 4

Total questions: 115

Worksheet time: 3hrs 38mins

Name
Class
Date
1.

How many bonds will a Carbon atom typically form?

a)

1

b)

2

c)

3

d)

4

2.

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.

3.

Which of the following is true for all hydrocarbon?

a)

They have carbon and hydrogen atoms only in the molecule.

b)

They have carbon, oxygen and hydrogen atoms in the molecule.

c)

They are in the same homologous series.

d)

They are saturated compounds.

4.

Which of the following is the most important source of organic carbon compounds?

a)

Plants

b)

Animals

c)

Coal

d)

Petroleum

5.

Which of the following is a common household item?

a)

Table

b)

Chair

c)

Knife

d)

Sofa

6.

What are the products formed when propane is burnt in excess oxygen?

a)

Carbon and hydrogen

b)

Carbon dioxide and water

c)

Carbon monoxide and water

d)

Carbon monoxide and hydrogen

7.

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

8.

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

9.

When a student Asher is awarded a scholarship, it means that

a)

He has gained recognition for his academic achievements

b)

He has lost his interest in studies

c)

His parents have lost a significant amount of money

d)

He has shared his knowledge with others

10.

What is the molecular formula of the compound used by Avni in her chemistry experiment?

a)

C4H10

b)

C4H6

c)

C4H8

d)

C4H4

11.

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

a)

Superposition

b)

Catenation

c)

Isomerisation

d)

Halogenation

12.

What is the main ingredient in the recipe for Sneha's famous chocolate cake?

a)

Flour

b)

Sugar

c)

Cocoa powder

d)

Butter

13.

From which of the following substance pencil lead is formed?

a)

Charcoal

b)

Wood

c)

Lead

d)

Graphite

14.

-Methane is a major constituent of

a)

CNG

b)

Bio-gas

c)

Natural Gas

d)

All the above

15.

How do covalent bonds affect the properties of substances?

a)

They contribute to low melting and boiling points

b)

They are responsible for poor conductivity of electricity

c)

They result in weak inter-molecular forces

d)

All of the above

16.

Atomic structure of Carbon

a)

12

b)

7

c)

6

d)

4

17.

What is the chemical formula for Benzene?

a)

C6H12

b)

C6H8

c)

C8H6

d)

C6H6

18.

Allotrope of carbon and their state are

a)

Graphite,Hydrogen/Solid and Liquid

b)

Diamond and Graphite/Amorphous and Liquid

c)

Graphite and Diamond/Crysalline and Amorphous

d)

Diamond and Graphite/Amorphous and Chlorised

19.

What is the general formula for the number of guests at a party?

a)

CnH2n+4

b)

CnH2n+2

c)

CnH2n

d)

CnH2n-2

20.

Prefix But is used when no. of carbon are

a)

1

b)

3

c)

4

d)

5

21.

What is the general formula for saturated hydrocarbons in organic chemistry?

a)

CnH2n

b)

CnHn+1

c)

CnH2n+1

d)

CnH2n+2

22.

What do hydrocarbons contain?

a)

Carbon only

b)

Carbon and Hydrogen only

c)

Carbon, Oxygen, and Hydrogen only

d)

Carbon, Oxygen, Hydrogen, and Nitrogen only

23.

What is the definition of saturated?

a)

No single bonds

b)

Contains a double bond

c)

No single bonds, all double bonds

d)

No double bonds, all single bonds

24.

Which formula represents a saturated hydrocarbon?

a)

A

b)

B

c)

C

d)

D

25.

In a chemistry class, how many carbon atoms are in butane?

a)

1

b)

2

c)

3

d)

4

26.
Which of the following compounds is an example of hydrocarbon?
a)
CO2
b)
C2H6
c)
C2H5OH
d)
CH3COOH
27.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
28.

How many carbon atoms are in a molecule of methane?

a)

1

b)

2

c)

3

d)

4

29.

How many carbon atoms are in a molecule of propane?

a)

1

b)

2

c)

3

d)

4

30.

In a chemistry class, the teacher explained that unsaturated hydrocarbons contain at least one double or triple bond.

a)

True

b)

False

31.

Example of unsaturated hydrocarbons is

a)

C-C

b)

C=C

c)

C-H

d)

C-O

32.

What is the suffix for single bonded hydrocarbons in organic chemistry?

a)

-yne

b)

-ene

c)

-ane

d)

-one

33.
oxygen is a gas produced by _ and used by  _ 
a)
plants and animals 
b)
photosynthesis and carbon dioxide 
c)
animals and plants 
d)
carbon dioxide and photosynthesis
34.

if there is a fire in a city, there will be less _ in the environment?

a)

nitrogen

b)

oxygen

35.
How is the burning of fossil fuels related to global warming?
a)
Magic
b)
Fuels are hot
c)
Greenhouse effect
d)
Photosynthesis
36.

Which of the following processes removes carbon from the atmosphere?

a)

Combustion

b)

Respiration

c)

Photosynthesis

d)

Death

37.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
38.

Arnav is learning about photosynthesis. He wants to know what plants use to make their own food.

a)

Water

b)

Sunlight

c)

Carbon dioxide

d)

All of these

39.
What does NOT produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
40.
What process occurs when coal (fossil fuel) is used for energy?
a)
Decomposition
b)
Combustion
c)
Pressurization 
d)
Respiration 
41.

Is Iron (Fe) commonly found in nature as an element or a compound?

a)

element

b)

compound

42.

How many elements are in H2O

a)

1

b)

2

c)

3

d)

4

43.

What does this image represent in the context of chemistry?

a)

element

b)

compound

44.

This image shows which of the following?

a)

element

b)

compound

45.

What does this image depict in the context of chemistry?

a)

element

b)

compound

46.

When different ingredients are mixed together to create a new dish, it is called __________________.

a)

recipe

b)

ingredient

c)

meal

d)

flavor

47.

Which of the following statements describes an element?

a)

It describes a substance that cannot be broken down into simpler substances by chemical means.

b)

It refers to a material made up of only one type of atom.

c)

It signifies a compound formed by the bonding of two or more different elements.

d)

It denotes a substance with unique properties distinct from its constituent elements.

48.

Which of the following statements describes a compound?

a)

It contains only one kind of atom.

b)

It can be separated by physical means.

c)

It cannot be decomposed into simpler types of substances.

d)

It consists of atoms of two or more different elements bond together.

49.

Which of the following is a natural element?

a)

Gold

b)

Air

c)

Water

d)

Carbon Dioxide

e)

Nitrous Oxide

50.

Chemistry class is a session where students learn about the periodic table.

a)

TRUE

b)

FALSE

51.

Carbon is considered an element, while carbon dioxide is considered a compound.  This is because carbon dioxide is –

a)

 

a gas at room temperature.

b)

made of two different elements.

c)

given off by green plants.

d)

useful to human beings.

52.

 

Compounds are different than elements because compounds are–

a)

combinations of two or more elements.

b)

not able to be broken down into parts.

c)

made from the same type of atoms. 

d)

a pure substance; elements are not.

53.

 

The smallest particle of any particular type of matter is known by which of the following terms?

a)

A

Element

b)

B

Chemical

c)

C

Atom

d)

D

Compound

54.
All matter is made of 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
55.

Which of the following is NOT an example of element?

a)

Helium gas

b)

Hydrogen

c)

Ice

d)

Iron

56.

The _____________organizes all the elements and shows their symbols and atomic weights.

a)

Periodic Table of the Elements

b)

Elemental Table of the Periods

c)

Element Table of the Atoms

d)

Periodic Table of the Compounds

57.

There are _______ elements on the current periodic table.

a)

92

b)

1,347,016

c)

18

d)

118

58.

T or F: Everything we know of in the universe is made up of combinations of the 118 known elements.

a)

TRUE

b)

FALSE

59.

What is the Structural formula of Vinegar?

a)

HCOOH

b)

CH3COOH

c)

CH3-CH2-OH

d)

CH3-OH

60.

Which of the following statements are usually correct for carbon compounds? These-

(i) are good conductors of electricity

(ii) are poor conductors of electricity

(iii) have strong forces of attraction between their molecules

(iv) do not have strong forces of attraction between their molecules.

a)

(i) & (iii)

b)

(ii) & (iii)

c)

(ii) & (iv)

d)

(i) & (iv)

61.

A molecule of CO2 (carbon dioxide) has -

a)

Only single bonds

b)

Only double bonds

c)

Only triple bonds

d)

1 single & 1 double bond

62.

Which of the following are correct structural isomers of Butane?

a)

(i) & (iii)

b)

(ii) & (iv)

c)

(i) & (iv)

d)

(i) & (ii)

63.

Write the IUPAC name of the given carbon compound.

a)

4-Ethyl-Hexanoic acid

b)

3-Propyl-Pentanoic acid

c)

Ethyl-Hexanoic acid

d)

4-Methyl-Hexan-6-oic acid.

64.

Pentane has the molecular formula C5H12.

a)

5 covalent Bonds

b)

12 covalent Bonds

c)

16 covalent Bonds

d)

17 covalent Bonds

65.

1. Which one is the correct structure of the given carbon compounds?

2-Chloro-3,4-Di-Methyl-Hexan-2-ol

a)
b)
66.

In which of the following compounds, — OH is the functional group?

a)

Butanone

b)

Butanal

c)

Butanoic acid

d)

Butanol

67.
What is the general formula for saturated hydrocarbons?
a)
CnH2n
b)
CnHn+1
c)
CnH2n+1
d)
CnH2n+2
68.
If an alkane has 20 carbon atoms, how many hydrogen atoms will it have?
a)
20
b)
22
c)
40
d)
42
69.

Hydrocarbons are compounds that contain

a)

Carbon only

b)

Carbon and Hydrogen only

c)

Carbon, Oxygen, and Hydrogen only

d)

Carbon, Oxygen, Hydrogen, and Nitrogen only

70.
The longer the hydrocarbon, the _______ the boiling point
a)
Lower
b)
Higher
71.

What is the definition of saturated?

a)

No single bonds

b)

Contains a double bond

c)

No single bonds, all double bonds

d)

No double bonds, all single bonds

72.

Which formula represents a saturated hydrocarbon?

a)

A

b)

B

c)

C

d)

D

73.

The boiling points of alkane molecules increase as their molecular sizes increase.

a)

True

b)

False

74.

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

a)

12

b)

7

c)

6

d)

4

75.

Covalent compound are mettalic in nature

a)

true

b)

false

76.

Buckministerfullerance found in

a)

combined state

b)

free state

77.

Allotrope of carbon and their state are

a)

Graphite,Hydrogen/Solid and Liquid

b)

Diamond and Graphite/Amorphous and Liquid

c)

Graphite and Diamond/Crysalline and Amorphous

d)

Diamond and Graphite/Amorphous and Chlorised

78.

General formula of Alkane is

a)

CnH2n+4

b)

CnH2n+2

c)

CnH2n

d)

CnH2n-2

79.

One Bond( - ) means

a)

1 electron

b)

3 electron

c)

2 electron

d)

1 x 2 e + 1e

80.

Which of these has the formula C60?

a)

graphite

b)

diamond

c)

fullerene

d)

none of these

81.

The property of self-linkage among identical atoms to form long chains is

a)

Superposition

b)

Catenation

c)

Isomerisation

d)

Halogenation

82.

Covalent compound

a)

has low melting and boiling point

b)

is generally poor conductors of electricity

c)

has weak inter-molecular forces

d)

All of the above

83.

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 six electrons

84.

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

a)

1

b)

3

c)

4

d)

5

85.

Which of the following is the most important source of organic carbon compounds?

a)

Plants

b)

Animals

c)

Coal

d)

Petroleum

86.
The molecular formula for Heptane is
a)
C4H10
b)
C8H18
c)
C5H12
d)
C7H16
87.

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

88.

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

89.

General formula of Alkane is

a)

CnH2n+4

b)

CnH2n+2

c)

CnH2n

d)

CnH2n-2

90.

General formula of Alkane is

a)

CnH2n+4

b)

CnH2n+2

c)

CnH2n

d)

CnH2n-2

91.

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.

92.

Which of the following is an unsaturated hydrocarbon

a)

Acetylene

b)

Butane

c)

Pentane

d)

Decane

93.

Hydrocarbon is an organic compound containing only

a)

carbon and oxygen

b)

hydrogen dan carbon

c)

hydrogen and oxygen

d)

oxygen and nitrogen

94.

Allotrope of carbon and their state are

a)

Graphite,Hydrogen/Solid and Liquid

b)

Diamond and Graphite/Amorphous and Liquid

c)

Graphite and Diamond/Crysalline and Amorphous

d)

Diamond and Graphite/Amorphous and Chlorised

95.

Carbon latin word is

a)

Carbon

b)

Carbonic

c)

Coal

d)

Carbo

96.

Carbon di oxide is an example for Organic compound.

a)

true

b)

False

97.
The desire for an element to have 8 atoms around it is called 
a)
Octet Rule
b)
Resonance
c)
Ionization energy
d)
Electronegativity
98.

The property of self-linkage among identical atoms to form long chains is

a)

Superposition

b)

Catenation

c)

Isomerisation

d)

Halogenation

99.

From which of the following substance pencil lead is formed?

a)

Charcoal

b)

Wood

c)

Lead

d)

Graphite

100.

Cation is formed when

a)

Atom gains electrons

b)

Atom loses electrons

c)

Proton is lost by the atom

d)

Atom shares electrons

101.

Which of the following is the most important source of organic carbon compounds?

a)

Plants

b)

Animals

c)

Coal

d)

Petroleum

102.

Benzen Formula is

a)

C6H12

b)

C6H8

c)

C8H6

d)

C6H6

103.

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

a)

12

b)

7

c)

6

d)

4

104.

Carbon latin word is

a)

Carbon

b)

Carbonic

c)

Coal

d)

Carbo

105.

Allotrope of carbon and their state are

a)

Graphite,Hydrogen/Solid and Liquid

b)

Diamond and Graphite/Amorphous and Liquid

c)

Graphite and Diamond/Crysalline and Amorphous

d)

Diamond and Graphite/Amorphous and Chlorised

106.

How many bonds will a C atom form?

a)

1

b)

2

c)

3

d)

4

107.

Which of the following is the most important source of organic carbon compounds?

a)

Plants

b)

Animals

c)

Coal

d)

Petroleum

108.

Cation is formed when

a)

Atom gains electrons

b)

Atom loses electrons

c)

Proton is lost by the atom

d)

Atom shares electrons

109.

From which of the following substance pencil lead is formed?

a)

Charcoal

b)

Wood

c)

Lead

d)

Graphite

110.

The property of self-linkage among identical atoms to form long chains is

a)

Superposition

b)

Catenation

c)

Isomerisation

d)

Halogenation

111.

Atomic number of carbon is

a)

12

b)

6

c)

7

d)

14

112.
The desire for an element to have 8 atoms around it is called 
a)
Octet Rule
b)
Resonance
c)
Ionization energy
d)
Electronegativity
113.

Carbon di oxide is an example for Organic compound.

a)

true

b)

False

114.

Hetero-atom in C6H1206

a)

Carbon

b)

Hydrogen

c)

Oxide

d)

Oxygen

115.

One Bond( - ) means

a)

1 electron

b)

3 electron

c)

2 electron

d)

1 x 2 e + 1e

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