ECAT Pre Engineering Chemistry Chapter 18 MCQ Test With Answer for Chemistry chapter 18 (Fundamentals Principles of Organic Chemistry)

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

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

Major component of natural gas is:

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

Wohler synthesized first of all the organic compound:

• Carbohydrates A
• Urea B
• Aniline C
• Toluene D

Fossil fuels consist of :

• Coal A
• Natural gas B
• Petroleum C
• All of these D

Alkynes normally have ______ hybridization

• Sp A
• Sp² B
• SP³ C
• d sp³ D

At present oil refineries in Pakistan are:

• One A
• Two B
• Three C
• Four D

Cracking normally gives smaller ______

• Alkanes A
• Alkenes B
• Alkynes C
• Both a and b D

Select from the following which one is alcohol?

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

Number of isomers of butane are:

• One A
• Two B
• Three C
• Four D

Which of the following is an electrophile

• Bromine A
• KBr B
• NH₃ C
• Benzene D

The compounds which have any atom other than Carbon atom, in rings are called as

• Monocyclic A
• Heterocyclic B
• Homocyclic C
• None of the above D

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

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

Geographical survey of Pakistan estimates about billion tons of coal in Pakistan:

• 182 A
• 183 B
• 184 C
• 185 D

General formula of carbocyclic acids is:

• RCOH A
• RCOR B
• RCOOR C
• R-OH D

1-butene an 2-butene are an example of

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

Identify the compound which has a bond angle of 109.5°

• Ethyne A
• Ethere B
• Methane C
• Benzene D

Which is the chain isomer of n-pentane

• Isopentane A
• Neopentene B
• N-pentene C
• Isopentene D

Coal is obtained from dead remains of

• Plants A
• Animals B
• Both a and b C
• None D

Which is not a fossil fuel

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

Types of cracking are:

• Thermal A
• Catalytic B
• Steam C
• All a, b ,c D

Type of isomerism in BrCH=CHBr is:

• Structural isomerism A

• Conformational isomerism

  B
• Geometrical isomerism C
• Positional isomerism D

Which set of hybrid orbitals has planar triangular shape

• sp³ A
• sp B
• sp² C
• dsp² D

Peat before conversion to bituminous coal is converted to

• Lignite A
• Anthracite B
• Asphalt C
• None D

• Condensation A
• Dehydration B
• Dehydrogenation C
• Hydrogenation D

type of hybridization in CH≡CH is:

• sp A
• sp² B
• sp³ C
• dsp² D

Compounds of carbon and hydrogen in which the tetra valency of carbon is fully satisfied are called,

• Saturated A
• Un-saturated B
• Magnetic C
• Para-magnetic D

Normal by product of cracking is

• Ethane A
• Butane B
• Benzene C
• All of them D

Compounds having same molecular formula but different structures are said to be

• Monomers A
• Isomers B
• Metamers C
• Tautomers D