ECAT Pre Engineering Chemistry Chapter 18 MCQ Test With Answer

Tetraethyle lead causes disease:

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

Which of the following is complex?

• CaSO₄. 0.5H₂O A
• (C₆H₁₀O₅)_n B
• C₆H₁₂O₆ C
• CH₄ D

Which of the following is not a hydrocarbon

• Butane A
• Methyl benezene B
• Acetylene C
• Glucose D

The self linking of carbon atoms is called

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

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

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

Which is the chain isomer of n-pentane

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

Which is a mixture of low boiling hydrocarbon

• Natural gas A
• Petroleum B
• Wood C
• Graphite D

The formula of ketone is

• 
  A
• 
  B
• 
  C
• None of these 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

The major components of coal gas are

• Hydrogen and methane A
• Ethane and carbon monoxide B
• Nitrogen and ethane C
• Ethane and carbon dioxide D

Which of the following contains single bonds

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

Cracking done at low pressure and with a catalyst is called _______ cracking

• Thermal A
• Catalytic B
• Steam C
• None of them D

Polythene is a polymer of

• Ethane A
• Ethene B
• Acetone C
• Propylene D

Select from the following which one is alcohol?

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

Cracking products are :

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

The quality of petroleum is determined by

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

Hydrocarbons contain

• C and S only A
• C and H only B
• C, H, and O only C
• C, H, O and N only 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

Wholer prepared urea from

• Ammonia A
• NH₄CNO B
• NH₃ C
• Uric acid D

Which of the following has linear shape?

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

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

• 0 1 A
• 0 2 B
• 1 1 C
• 1 2 D

Identify the heterocyclic compound

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

Organic compounds generally react at ______ rates

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

Coal is obtained from dead remains of

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

The chemist who synthesized urea form ammonia cyanate was:

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

The general formula for alkenes is

• C_nH_2n+1 A
• C_nH_2n+2 B
• C_nH_2n C
• C_nH_2n-2 D

1-butene an 2-butene are an example of

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

The gasoline with high octane No. has ______

• More knocking A
• Less knocking B
• No knocking C
• Only knocking D