ECAT Pre Engineering Chemistry Chapter 18 MCQ Test With Answer

Which is not a fossil fuel

• Petroleum A
• Coal B
• Natural gas C
• None of them D

The chemist who synthesized urea from ammonium cyanate was

• Berzelius A
• Kolbe B
• Wholer C
• Lavoisier D

Unsaturated hydrocarbon containing a double bond are called

• paraffin A
• Alkanes B
• Olefins C
• Acetylene D

The chemist who synthesized urea form ammonia cyanate was:

• Berzelius A
• Kolbe B
• Wohler C
• Lavoiser D

Functional group of ketones is:

• ---CHO A
• ---CO--- B
• ---C≡ N C
• ---COOH D

The fractions obtained from fractional distillation of petroleum are placed in increasing order of their boiling points. Which order is correct

• Natural gas, petroleum ether, gasoline kerosene A
• Petroleum ether, kerosene, natural gas, petroleum ether B
• Gasoline, kerosene, natural gas, petroleum ether C
• Kerosene, gasoline, petroleum ether, natural gas D

Linear shape is associated with which set of hybrid orbitals

• sp A
• sp² B
• sp³ C
• dsp² D

The state of hybridization of carbon atom in methane is

• sp³ A
• sp² B
• sp C
• dsp² D

Benzene is an example of

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

The isomers due to the unequal distribution of carbon atoms on either side of the functional group belonging to the same homologous series are called

• Functional isomers A
• Position isomers B
• Chain isomers C
• Metamers D

The self linking of carbon atoms is called

• Chelation A
• Isomerism B
• Catenation C
• None of the above D

• 0 A
• 1 B
• 2 C
• 3 D

Organic compounds generally react at ______ rates

• Slow A
• Fast B
• Moderate C
• None of them D

Angle 120° is observed in molecules :

• CH₄ A
• CH_3-CH₃ B
• CH -CH C
• CH_{2 =}CH₂ D

Major component of natural gas is:

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

Who rejected the vital force theory

• Wholer A
• Fisher B
• Newton C
• Lewis D

Gasoline is a mixture of hydrocarbons containing carbon atoms

• 5 to 10 A
• 5 to 8 B
• 5 to 12 C
• 5 to 11 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

The atom other than C in a hetrocyclic compound is called as

• Hetroatom A
• Hetroion B
• Hetromolecule C
• Hetroelement D

In alkynes the bonds between carbon atoms are

• All sigma bonds A
• All pi(π) bonds B
• One is sigma and two areπ(pi) bonds C
• One isπ(pi) and two are sigma bonds D

Which of the following has linear shape?

• SP A
• SP² B
• SP³ C
• None of the above D

Due to the bacterial action on wood it is converted into

• Peat A
• Lignite B
• Bituminous coal C
• Anthracite D

The destructive distillation of coal gives three products. What is not the product of destructive distillation of coal

• Coal gas A
• Carbon dioxide B
• Coal tar C
• Coke D

Alkynes normally have ______ hybridization

• Sp A
• Sp² B
• SP³ C
• d sp³ D

Which set of hybrid orbitals has planar triangle shape?

• sp³ A
• sp B
• sp² C
• dsp² D

Cracking products are :

• Only alkanes A
• Only alkenes B
• Alkanes and alkenes C
• Alkynes D

The formula of esters is

• 
  A
• 
  B
• 
  C
• 
  D

How many structural acid cis-trans isomers are there for dichloroprepe, C₃H₄Cl₂

• 3 A
• 5 B
• 6 C
• 7 D

In sp²type hybridization the three equivalent sp²orbitals lie in the same plane and at angle of

• 0° A
• 60° B
• 120° C
• 180° D

The branch of chemistry which deals with the study of compounds containing carbon as an essential elements is called

• Physical A
• Inorganic B
• Nuclear C
• Organic D