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MCQs

Total Questions : 93 | Page 2 of 10 pages
Question 11. Which of the following is used for artificial ripening of fruits?
  1.    ethylene
  2.    acetylene
  3.    phenol
  4.    methanol
 Discuss Question
Answer: Option B. -> acetylene
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 12. An alkane with molecular formula C7H16 is called
  1.    butane
  2.    pentane
  3.    hexane
  4.    heptane
 Discuss Question
Answer: Option D. -> heptane
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 13. IUPAC names are also called
  1.    systematic names
  2.    hydrocarbon names
  3.    scientific names
  4.    class names
 Discuss Question
Answer: Option A. -> systematic names
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 14. The general formula for amines is
  1.    R-CH2
  2.    R2CH
  3.    R-NH2
  4.    R-COOH
 Discuss Question
Answer: Option C. -> R-NH2
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 15. Alcohols (CnH2n+1OH) are formed by the attachment of
  1.    OH group to hydrocarbon chain
  2.    HX group to hydrocarbon chain
  3.    O to hydrocarbon chain
  4.    H to hydrocarbon chain
 Discuss Question
Answer: Option A. -> OH group to hydrocarbon chain
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 16. What is the general formula of alkenes?
  1.    CnH2n+2
  2.    CnH2n
  3.    CnH2n-2
  4.    CnHn
 Discuss Question
Answer: Option B. -> CnH2n
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 17. What is the term used for unsaturated hydrocarbons containing at least one carbon-carbon double bond?
  1.    alkanes
  2.    alkenes
  3.    alkynes
  4.    none of above
 Discuss Question
Answer: Option B. -> alkenes
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 18. How many bonding electrons are present in the valence shell of carbon?
  1.    two
  2.    three
  3.    four
  4.    five
 Discuss Question
Answer: Option C. -> four
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 19. An alkane with molecular formula C6H14 is called
  1.    butane
  2.    pentane
  3.    hexane
  4.    heptane
 Discuss Question
Answer: Option C. -> hexane
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 20. As the number of carbon atoms increases, the number of possible isomers
  1.    increases
  2.    decreases
  3.    remains same
  4.    becomes zero
 Discuss Question
Answer: Option A. -> increases
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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