πŸ“Š Pharmaceutical Organic Chemistry 1
Q. Which is the best antiknock compound or Which one of the following substances is used as an antiknock compound ……………
  • (A) Lead tetrachloride
  • (B) Lead acetate
  • (C) Zinc ethyl
  • (D) Tetraethyl lead (TEL)
πŸ’¬ Discuss
βœ… Correct Answer: (D) Tetraethyl lead (TEL)
πŸ“Š Pharmaceutical Organic Chemistry 1
Q. Most of the hydrocarbons from petroleum are obtained by…………….
  • (A) Fractional distillation
  • (B) Fractional crystallization
  • (C) Vaporization
  • (D) Polymerization
πŸ’¬ Discuss
βœ… Correct Answer: (A) Fractional distillation
πŸ“Š Pharmaceutical Organic Chemistry 1
Q. A mixture of ethyl iodide and n-propyl iodide is subjected to Wurtz reaction. The hydrocarbon that will not be formed is…………..
  • (A) n-butane
  • (B) n-propane
  • (C) n-pentane
  • (D) n-hexan
πŸ’¬ Discuss
βœ… Correct Answer: (B) n-propane
πŸ“Š Pharmaceutical Organic Chemistry 1
Q. Which of the following has highest octane number…………..
  • (A) n-hexane
  • (B) n-heptane
  • (C) Iso-octane
  • (D) n-heptane and iso-octane mixed in ratio 50 : 50
πŸ’¬ Discuss
βœ… Correct Answer: (C) Iso-octane
πŸ“Š Pharmaceutical Organic Chemistry 1
Q. Isomerism in saturated hydrocarbons is due to…………..
  • (A) Change in the valence of carbon
  • (B) Change in the ratio of elements in compounds
  • (C) Formation of branches in the chain of C atoms
  • (D) Formation of double bond
πŸ’¬ Discuss
βœ… Correct Answer: (C) Formation of branches in the chain of C atoms
πŸ“Š Pharmaceutical Organic Chemistry 1
Q. By Wurtz reaction, a mixture of methyliodide and ethyliodide gives………….
  • (A) Butane
  • (B) Ethane
  • (C) Propane
  • (D) A mixture of the above three
πŸ’¬ Discuss
βœ… Correct Answer: (D) A mixture of the above three
πŸ“Š Pharmaceutical Organic Chemistry 1
Q. The inorganic origin of petroleum is indicated by the fact that…………..
  • (A) Its constituents can be separated by fractional distillation
  • (B) Carbon and hydrocarbon can combine by absorption of solar energy to give hydrocarbons
  • (C) Petroleum contains traces of chlorophyll
  • (D) Oil fields are located with the help of seismograph
πŸ’¬ Discuss
βœ… Correct Answer: (B) Carbon and hydrocarbon can combine by absorption of solar energy to give hydrocarbons