ECAT Pre Engineering Chemistry Chapter 18 MCQ Test With Answer

Organic compounds resemble to those of inorganic compounds having same

• Ionic properties A
• Carbon forming long chain or rings B
• Chemical forces C
• Isomerism D

I-Chloropropane has two isomers, it is an example of

• Chain isomerism A
• Position isomerism B
• Functional group isomerism C
• Metamerism D

Those compound which have any atom other than C as member of rings are called as

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

Source of organic compounds primarily is:

• Plants A
• Animals B
• Minerals C
• A & B D

Which of the following gases is used for illuminating purpose?

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

Select from the following which one is alcohol?

• CH₃-CH₂-OH A
• CH₃-O-CH₃ B
• CH₃COOH C
• CH₂-CH₂-BR D

Ether shows the phenomenon of

• position isomerism A
• Chain isomerism B
• Metamerism C
• Cir-trans isomerism D

A double bond consists of:

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

Organic compounds generally react at ______ rates

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

Unsaturated hydrocarbon containing a double bond are called

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

Identify the compound formed, when ethylene combines with water in the presence of 10% sulphuric acid and HgSO₄as catalyst

• Carbinol A
• Methanol B
• Ethanol C
• Glycol D

The major portion of natural gas is

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

Homologues differ from each other by an integral number of

• CH₂groups A
• CH₃groups B
• CH groups C
• CH₄groups 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

Identify the heterocyclic compound

• Toluene A
• Pyridine B
• Butanoic acid C
• Propenol D

Tetraethyle lead causes disease:

• Typhoid A
• Respiratory B
• Stomach C
• Muscular D

Hybridzation explain the --------- of orbitals

• Type of bonding A
• Shapes B
• Shape and type of bonding C
• None of above D

type of hybridization in CH≡CH is:

• sp A
• sp² B
• sp³ C
• dsp² 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 percentage of methane in natural gas is

• 50% A
• 60% B
• 85% C
• 90% D

• 2, 2, 4-trimethylpentane A
• 2, 4, 4-trimethylpentane B
• 2, 4, 4-methyepentane C
• 2, 2, 4-methylpentane 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

1-butene an 2-butene are an example of

• Chian isomerism A
• Positional isomerism B
• Metamerism C
• Functional group isomerism D

Alkynes normally have ______ hybridization

• Sp A
• Sp² B
• SP³ C
• d sp³ D

Self linkage of carbon to produce long chains

• isomerism A
• Polymorphism B
• Polymerization C
• Catenation D

Which is not the poplar reaction

• 
  A
• 
  B
• 
  C
• 
  D

Linear shape is associated with which set of hybrid orbitals

• sp A
• sp² B
• sp³ C
• dsp² D

The structure of benzene is

• Hexagonal A
• Pyramidal B
• Square planer C
• Tetrahedral D

The state of hybridization of carbon atom in methane is

• sp³ A
• sp² B
• sp C
• dsp² D

Linear geometry is present in:

• Sp³ A
• Sp² B
• Sp C
• D²sp³ D