ECAT Pre Engineering Chemistry Chapter 18 MCQ Test With Answer

Which one of the followings is a heterocyclic compound

• Cyclohexanol A
• Phenol B
• Pyridine C
• Anthracene D

• 0 A
• 1 B
• 2 C
• 3 D

Which of the following is an aromatic compound

• Propanol A
• Cyclohexane B
• Acetone C
• Benezene D

Benzene is an example of

• Aromatic compound A
• Cyclic compound B
• Aliphatic compound C
• A cyclic compound D

The functional group of acid amide is

• 
  A
• 
  B
• 
  C
• 
  D

Products of coal is:

• Peat A
• Lignite B
• Bituminous coal C
• All above D

• 0 1 A
• 0 2 B
• 1 1 C
• 1 2 D

A nuclophile must

• Be an atom A
• A group of atoms B
• Have a lone pair C
• Be negatively charged D

Closed chain compound can be classified into

• Homocyclic A
• Hetrocyclic B
• Aliphatic C
• Both a and b D

Carboxylic acid, ester, amide and amino groups are shown. Which is the correct description of these functional groups

• 
  A
• 
  B
• 
  C
• 
  D

In ter-butyl alcohol, the tertiary carbon is bonded to

• Two hydrogen atoms A
• Three hydrogen atoms B
• One hydrogen atoms C
• No hydrogen atom D

The catalyst,. which is used as specialist for cracking, are

• Aluminates A
• Alumlnosilicates B
• Aluminium slats C
• All can be used D

Identify the hydrocarbon formed, when ethyl bromide reacts with, alcoholic KOH at 100°

• Methane A
• Ethane B
• Ethene C
• Ethyne D

The characteristic reactions of alkanes are

• Addition reactions A
• Substitution reactions B
• Condensation reactions C
• Polymerization reactions D

Coal is used to bake bricks in lime kiln:

• 40% A
• 60% B
• 80% C
• None of these D

In which molecule carbon atom is sp²hybridized

• CH₄ A
• C₂H₄ B
• C₂H₂ C
• None of the above D

When a compound X is passed through a dilute alkaline solution of KMnO₄the pink colour of solution is discharged. The compound X is possbibly

• Methane A
• Ethane B
• Ethene C
• Benzene D

Which of the following compounds contains a triple bond?

• Alkane A
• Alkene B
• Alkyne C
• Benzene D

A double bond consists of

• Two sigma bonds A
• One sigma and one Pi bond B
• One sigma and two Pi bonds C
• Two Pi bonds D

n-butane and iso butane are an example of

• Chain isomerism A
• Positional isomerism B
• Meta merism C
• Functional group isomerism D

The process in which one s and two p orbitals mix up with each other is called

• Sp-hybridization A
• Sp²-hybridization B
• Sp³-hybridization C
• Dsp²-hybridization D

The process in which orbitals of different energies and shapes mix up with each other to give equivalent is called,

• Hybridization A
• Polymerization B
• Isomerisation C
• Carbonization D

Replacement of hydrogen atom by - SO₃H group in benzene is called

• Nitration A
• Alkylation B
• Sulphonation C
• Acylation D

Peat contains about

• 60% carbon A
• 80% carbon B
• 78% carbon C
• 50% carbon D

Organic compounds are soluble in all except

• Benzene A
• Petroleum B
• Ether C
• Water D

In t-butyl alcohol, the tertiary carbon is bonded to:

• Two hydrogen atom A
• Three hydrogen atoms B
• One hydrogen atoms C
• No hydrogen atoms D

Linear shape is associated with which set of hybrid orbitals

• sp A
• sp² B
• sp³ C
• dsp² D

The quality of petroleum is determined by

• Decane number A
• Octane number B
• Nexane number C
• None of these D

Similarity in properties of different organic compounds give rise to the under standing of ______

• Polymerization A
• Non-polar nature B
• Homologous series C
• Isomerism D

The distillation of coal at high temperature and in absence of air is called

• Vacuum distillation A
• Normal distillation B
• Fractional distillation C
• Destructive distillation D