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MCQs

Total Questions : 273 | Page 25 of 28 pages
Question 241. When hydroxyl group is attached to carbon atom bonded to two other carbon atoms, the alcohol formed is
  1.    primary alcohol
  2.    secondary alcohol
  3.    tertiary alcohol
  4.    quaternary alcohol
 Discuss Question
Answer: Option B. -> secondary alcohol
Answer: (b).secondary alcohol
Question 242. Hydrocarbons are the main source of
  1.    petrol
  2.    diesel
  3.    kerosene
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 243. CH₃OH is called
  1.    methane
  2.    alcohol
  3.    methanol
  4.    methyl
 Discuss Question
Answer: Option C. -> methanol
Answer: (c).methanol
Question 244. Organic compounds which contain one more than one benzene rings are termed as
  1.    arenes
  2.    aryls
  3.    acyls
  4.    benzenes
 Discuss Question
Answer: Option A. -> arenes
Answer: (a).arenes
Question 245. In a benzene molecule, each carbon atom shares one pair of electrons to
  1.    neighboring atom on one side
  2.    neighboring atom on other side
  3.    hydrogen atom
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 246. Decolourization of bromine water will occur, on mixing it with
  1.    ethene
  2.    benzene
  3.    propene
  4.    butene
 Discuss Question
Answer: Option A. -> ethene
Answer: (a).ethene
Question 247. The formula of benzene is
  1.    C₆H₆
  2.    C₂H₆
  3.    C₆H₁₂
  4.    CH
 Discuss Question
Answer: Option A. -> C₆H₆
Answer: (a).C₆H₆
Question 248. Vanillin is found in seed pods of
  1.    vanilla orchid
  2.    rose
  3.    vanilla tree
  4.    vanilla roots
 Discuss Question
Answer: Option A. -> vanilla orchid
Answer: (a).vanilla orchid
Question 249. Product obtained from additional polymerization includes
  1.    water
  2.    only polymer
  3.    polyesters
  4.    polyamides
 Discuss Question
Answer: Option B. -> only polymer
Answer: (b).only polymer
Question 250. Change of enthalpy is equal to heat of reaction at
  1.    Constant temperature
  2.    Constant pressure
  3.    Constant energy values
  4.    constant entropy
 Discuss Question
Answer: Option B. -> Constant pressure
Answer: (b).Constant pressure

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