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MCQs

Total Questions : 93 | Page 3 of 10 pages
Question 21. Ethers are formed by the attachment of
  1.    two alkyl groups to same oxygen atom
  2.    two alkyl group to different oxygen atoms
  3.    three alkyl groups to one oxygen atom
  4.    four alkyl groups to one oxygen atom
 Discuss Question
Answer: Option A. -> two alkyl groups to same oxygen atom
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 22. Process in which coal is heated in the absence of air at high temperature and converted into coal gas, coal tar, and coke is called
  1.    destructive distillation
  2.    distillation
  3.    burning of coal
  4.    burning of oxygen
 Discuss Question
Answer: Option A. -> destructive distillation
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 23. Compounds in which one hydrogen atom of an alkane is substituted by one halogen atom are called
  1.    halo alkanes
  2.    phenols
  3.    ethers
  4.    alcohols
 Discuss Question
Answer: Option A. -> halo alkanes
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 24. If we remove one hydrogen (H) atom from an alkane (saturated hydrocarbon), we get
  1.    alkyl group
  2.    alkene group
  3.    alkyne group
  4.    aldehyde group
 Discuss Question
Answer: Option A. -> alkyl group
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 25. Methyl has the molecular formula
  1.    CH4
  2.    CH3
  3.    CH
  4.    CH2
 Discuss Question
Answer: Option B. -> CH3
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 26. Which of the following is a group of atoms obtained by removing one hydrogen atom from an alkane?
  1.    alkene
  2.    alkyne
  3.    functional group
  4.    alkyl radical
 Discuss Question
Answer: Option D. -> alkyl radical
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 27. Organic compounds include
  1.    alkali metals
  2.    alkaline earth metals
  3.    hydrocarbons and their derivatives
  4.    halogens
 Discuss Question
Answer: Option C. -> hydrocarbons and their derivatives
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 28. Methanoic acid is an example of
  1.    aldehydes
  2.    ketones
  3.    carboxylic acids
  4.    ethers
 Discuss Question
Answer: Option C. -> carboxylic acids
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 29. An alkane with molecular formula C5H12 is called
  1.    butane
  2.    pentane
  3.    hexane
  4.    heptane
 Discuss Question
Answer: Option B. -> pentane
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 30. Which of the following is widely used in the oxy-acetylene welding and cutting metals?
  1.    ethylene
  2.    acetylene
  3.    phenol
  4.    methanol
 Discuss Question
Answer: Option B. -> acetylene
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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