MEDIUM
AS and A Level
IMPORTANT
Earn 100

Give the empirical formula for both the structural isomers of methylpropene.

Important Questions on Introduction to Organic Chemistry

HARD
AS and A Level
IMPORTANT

A carbon compound P has the percentage composition 85.7 % carbon and 14.3 % hydrogen. Its relative molecular mass was found to be 56.

Calculate its empirical formula.

MEDIUM
AS and A Level
IMPORTANT

A carbon compound P has the percentage composition 85.7 % carbon and 14.3 % hydrogen. Its relative molecular mass was found to be 56.

Calculate its molecular formula.

HARD
AS and A Level
IMPORTANT

A carbon compound P has the percentage composition 85.7 % carbon and 14.3 % hydrogen. Its relative molecular mass was found to be 56.

Write down the names and displayed formulae of all the non-cyclic isomers of compound P which have the following characteristic:

  • Straight chain
HARD
AS and A Level
IMPORTANT

A carbon compound P has the percentage composition 85.7 % carbon and 14.3 % hydrogen. Its relative molecular mass was found to be 56.

Write down the names and displayed formulae of all the non-cyclic isomers of compound P which have the following characteristic:

  • Branched chain
MEDIUM
AS and A Level
IMPORTANT

A chemist was investigating the best way to produce 1, 2-dichloroethane. She reacted ethane with chlorine in the presence of UV light by the following reaction:

C2H6  (g) +2Cl2 (g) C2H4CI2 (l)+2HCI (g)

After doing this she found that 600 g of ethane gave 148.5 g of C2H4Cl2. Calculate how many moles of ethane are there in 600 g.

MEDIUM
AS and A Level
IMPORTANT

A chemist was investigating the best way to produce 1, 2-dichloroethane. She reacted ethane with chlorine in the presence of UV light by the following reaction:

C2H6  (g) +2Cl2 (g) C2H4CI2 (l)+2HCI (g)

After doing this she found that 600 g of ethane gave 148.5 g of C2H4Cl2. Calculate how many moles of 1, 2-dichloroethane are there in 148.5 g.

MEDIUM
AS and A Level
IMPORTANT
There are some structural isomers of the compound C2H4Cl2. Draw the displayed formulae of the isomers and name them.
MEDIUM
AS and A Level
IMPORTANT

A chemist was investigating the best way to produce 1, 2-dichloroethane. She reacted ethane with chlorine in the presence of UV light by the following reaction:

C2H6  (g) +2Cl2 (g) C2H4CI2 (l)+2HCI (g)

Name the type of reaction.