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Introduction to Organic Chemistry

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Which two elements do all organic compounds contain?

a)

Carbon and hydrogen

b)

Carbon and oxygen

c)

Oxygen and hydrogen

d)

Carbon and nitrogen

2.

Organic compounds made only of the elements carbon and hydrogen are called...

a)

Hydrocarbons

b)

Carbohydrogens

c)

Carbohydrates

d)

Hydrocarbonates

3.

Alkane molecules are made of which elements?

a)

Carbon and hydrogen

b)

Carbon, hydrogen and oxygen

c)

Carbon and oxygen

d)

Carbon, nitrogen and hydrogen

4.

All molecules of the alkane homologous series have which ending in their name?

a)

-ane

b)

-ene

c)

-anol

d)

-anoic acid

5.

Which is the correct general formula for the alkanes?

a)

CnH2n+2

b)

CnH2n

c)

CnH2n+1OH

d)

CnH2n+1COOH

6.

Which type of bonding is present within organic molecules?

a)

Covalent bond

b)

Ionic bond

c)

Metallic bond

d)

Hydrogen bond

7.

What is the name of the alkane shown here?

a)

Methane

b)

Ethane

c)

Propane

d)

Butane

8.

Is the chemistry of carbon.

a)

Inorganic Chemistry

b)

Organic Chemistry

c)

Analytical Chemistry

d)

Biochemistry

9.

What is the name of the process in which one orbital "S" and three orbitals "P" combined to form new orbitals?

a)

Combining

b)

Joining

c)

Hybridization

d)

Hydrozation

10.

What the name of the single bond compounds that formed saturated hydrocarbons?

a)

Alkanes

b)

Alkenes

c)

Alkynes

d)

Alkones

11.

What is the name of the double bonded compounds, which are unsaturated?

a)

Alkanes,

b)

Alkenes.

c)

Alkynes

d)

Alkones

12.

What is the name of the triple bonded compounds which are unsaturated?

a)

Alkanes

b)

Alkenes

c)

Alkynes

d)

Alkones

13.

This type of bond allows free rotation of the parts of the molecule with respect to each other

a)

Sigma bond

b)

Pi bond

c)

Covalent bond

d)

Electron bond

14.

Which bond is weaker and is more prone to chemical attacks?

a)

Pi bond

b)

Sigma bond

15.

This is a region about the nucleus where the probability of finding the electrons is very high

a)

Pi bond

b)

Atomic orbital

c)

Sigma bond

d)

Hybrid orbital

16.

Which statement is correct?

a)

All organic compounds contain carbon

b)

All organic compounds contain hydrogen

17.

Why is methane used as a fuel?

a)

It burns and releases energy (Exothermic reaction)

b)

It is a gas

c)

It is odourless

d)

It has a low boiling point

18.

Aliphatic hydrocarbons consist only single bonds, and so are called ____________ hydrocarbons.

a)

unsaturated

b)

saturated

c)

aromatic

d)

chain

19.

____________ groups are atoms, groups of atoms or bond that determine the characteristic of an organic compound.

a)

Aliphatic

b)

Aromatic

c)

Functional

d)

Hydrocarbon

20.

How many carbon atoms are in propane?

a)

1

b)

2

c)

3

d)

4