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MCQs

Total Questions : 1678 | Page 5 of 168 pages
Question 41. Under certain conditions, the ethene molecule reacts to give
  1.    isomer
  2.    polymer
  3.    isotope
  4.    monomer
 Discuss Question
Answer: Option B. -> polymer
Answer: (b).polymer
Question 42. Alkenes mostly follow the reaction of
  1.    addition reaction
  2.    elimination reaction
  3.    substitution reaction
  4.    none of above
 Discuss Question
Answer: Option A. -> addition reaction
Answer: (a).addition reaction
Question 43. The smaller units which react together to form polymer are called
  1.    polymer units
  2.    isomer
  3.    monomer
  4.    diatoms
 Discuss Question
Answer: Option C. -> monomer
Answer: (c).monomer
Question 44. If ethene is a reactant, then the product will be
  1.    ethanol
  2.    triol
  3.    butanol
  4.    propanol
 Discuss Question
Answer: Option A. -> ethanol
Answer: (a).ethanol
Question 45. Alcoholic drinks are manufactured by fermentation of
  1.    sugar cane
  2.    glucose
  3.    ethene
  4.    ethane
 Discuss Question
Answer: Option B. -> glucose
Answer: (b).glucose
Question 46. Number of isotopes which oxygen atom has, are
  1.    three
  2.    five
  3.    nine
  4.    two
 Discuss Question
Answer: Option A. -> three
Answer: (a).three
Question 47. Molecules expressed by formula unit mass are
  1.    atoms
  2.    neutral gases
  3.    covalent
  4.    ionic
 Discuss Question
Answer: Option D. -> ionic
Answer: (d).ionic
Question 48. Ordinary microscope can measure up to
  1.    400nm
  2.    500nm
  3.    200nm
  4.    700nm
 Discuss Question
Answer: Option B. -> 500nm
Answer: (b).500nm
Question 49. Moleis defined as mass of an element divided by
  1.    Molar mass
  2.    atomic number
  3.    atomic mass
  4.    empirical formula
 Discuss Question
Answer: Option A. -> Molar mass
Answer: (a).Molar mass
Question 50. C₃H₄O₃ is empirical formula for vitamin
  1.    C
  2.    A
  3.    B
  4.    D
 Discuss Question
Answer: Option A. -> C
Answer: (a).C

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