FINALS GROUP 1

Question 1

Are simple hydrocarbons with single bonds

Answer 1

Alkanes

Question 2

Rapid chemical combination of a substance with oxygen, involving the production of heat and light

Answer 2

Combustion

Question 3

A reaction in which ATOMS are REMOVED as molecules or Compounds

Answer 3

Elimination

Question 4

It is made up of carbon and hydrogen

Answer 4

Hydrocarbon

Question 5

They are colourless gases that have very weak odours.

They are highly COMBUSTIBLE and the MAIN ENERGY source of the world

Answer 5

Hydrocarbon

Question 6

What is the carbon that has Simple hydrocarbons with ___ bonds and have the formula ___

Answer 6

Saturated hydrocarbons (Alkanes)
Single
CnH2n+2

Question 7

Saturated hydrocarbons are saturated with ___ and form the basis of _____

Answer 7

Hydrogen
Petroleum fuels

Question 8

Alkanes can be ___ (normal alkanes) or branched, and are named based on the number of carbon atoms, with___ being the smallest alkane

Answer 8

Linear
Methane

Question 9

____ hydrocarbons contain ___ or ___

Answer 9

UNSATURATED CARBON
Double/ triple bond

Question 10

Alkenes with double bonds, have the formula ____, while alkynes, with triple bonds have the formula ___.

Answer 10

CnH2n
CnH2n-2

Question 11

The smallest alkene is the ___ and the smallest alkyne is ___, also known as acetylene and both contain two carbon atoms

Answer 11

Ethene
Ethyne

Question 12

__ Are hydrocarbons containing __ or __ rings to which hydrogen atoms are attached

Answer 12

Cycloalkane
One/ more carbon

Question 13

The general formula for saturated hydrocarbon containing one ring is ___

Answer 13

CnH2nCnH2n

Question 14

Are hydrocarbons that have atleast one aromatic ring

Answer 14

Aromatic hydrocarbons/ ARENES

Question 15

___ is composed of six C atoms in a ring, with alternating single and double C-C bonds

Answer 15

Benzene

Question 16

Catenation is also known as ___

Answer 16

Self-bonding

Question 17

It is the ability of hydrocarbons to bond to themselves.

It prevents the complete saturation of the hydrocarbons by the formation of double/ triple bonds

Answer 17

Catenation

Question 18

A process in which heavy organic molecules are broken down into lighter molecules

Answer 18

Cracking of hydrocarbons

Question 19

Are used to speed up the reaction

Answer 19

Catalyst

Question 20

Alkanes with 10 carbon atoms or FEWER are generally ___ at a room temperature

Answer 20

Gases

Question 21

Alkanes with ___ 10 carbons atoms can be GASES OR LIQUIDS

Answer 21

More than

Question 22

The boiling point of alkanes ___ with molecular mass and ____ with branching

Answer 22

Increases
Decreases

Question 23

HYDROCARBONS are very freebly soluble in ___

They are soluble in ___ solvents such as benzene and carbon tetrachloride

Answer 23

Water
Non-polar

Question 24

Hydrocarbons undergo ___ reactions with oxygen to produce carbon dioxide and water, releasing energy

Answer 24

Combustion

Question 25

___ are the LEAST reactive hydrocarbons due to their strong single sigma bonds ___ are more reactive due to the presence of double and triple bonds

Answer 25

Alkanes Alkenes and alkynes

Question 26

___ hydrocarbons, such as benzene, undergo ELECTROPHILIC SUBSTITUTION reaction

Answer 26

Aromatic hydrocarbons

Question 27

Alkane cane be prepared from alkene and alkyne through the process of ___

Answer 27

Hydrogenation

Question 28

It's a process where hydrogen gas (H2) is passed over a metal surfaces such as a nickel (Ni) or Platinum (Pt) along with the alkenes to produce an alkane

Answer 28

Hydrogenation

Question 29

The process of removing Carbon dioxide producing alkane with a carbon atom lesser than the present in the carboxylic acide

Answer 29

Decarboxylation

Question 30

Also called ____ reaction. The elimination of a water molecule mostly from compounds like alcohol

Answer 30

Dehydration Beta elimination

Question 31

The removal of hydrogen atom and halogen atom

Answer 31

Dehydrohalogenation

Question 32

Vicinal halides which are alkane molecules containing two halogen atoms on adjacent carbons atoms can be derived from ___

Answer 32

Dehalogenation

Question 33

Alkenes are made to react with halogen. Hydrogen is eliminated along with a halogen to obtain an alkyne

Answer 33

Dehydrohalogenation of alkyl halides

Question 34

___ is made to react with water to produce an alkyne

Answer 34

Calcium carbide

Question 35

Hydrocarbons are widely used in ( 4)

Answer 35

Fuels Manufacturing polymers Manufacturing drugs and dyes Lubricating oil and grease