A metal X forms two bromides with the formulae XBr₂ and XBr₃. What type of bonding exists between X and bromine in the bromide?

A. Ionic bonding

B. Metallic bonding

C. Dative bonding

D. Covalent bonding

A mixture of petrol and water can be separated through

A. centrifugation

B. distillation

C. the use of separating funnel

D. the use of filter paper

Which of the following represents an aromatic compound?

A. C₆H₅OH

B. C₆H₁₂

C. C₆H₉OH

D. C₆H₈

CH₃CH₂Cl + KCN → CH₃CH₂CN + KCl

In the reaction above, the cyanide is

A. hydrophobic

B. hydrophilic

C. nucleophilic

D. electrophilic

Which of the following compounds is the best possible anti-knock agent for petrol?

A. (CH₃)₂CH - CH(CH₃)CH₂CH₃

B. CH₃CH₂(CH₃)CHCH₂CH₂CH₃

C. CH₃CH₂(CH₃)CHCH₂CH₂CH₃

D. (CH₃)₃C - CH₂CH₂CH₃

The hydrocarbon used in the production of styrene is

A. ethyne

B. propyne

C. ethane

D. ethene

How many structural isomers of chlorobutane are possible?

A. 4

B. 3

C. 2

D. 1

The conversion of open chain alkanes into cycloalkanes and aromatic compounds is called

A. cracking

B. reforming

C. isomerization

D. polymerization

Which of the following alkanes has the highest boiling point?

A. Pentane

B. Ethane

C. Propane

D. Methane

Certain useful waxes are composed mainly of

A. amino acids

B. glycerols

C. alkanols

D. alkanoates