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MCQs

Total Questions : 273 | Page 9 of 28 pages
Question 81. Natrium is Latin name for
  1.    Nickel
  2.    Nitrogen
  3.    sodium
  4.    Stannum
 Discuss Question
Answer: Option C. -> sodium
Answer: (c).sodium
Question 82. Substance is treated both as a radical and an element. It is
  1.    sulphate
  2.    hydrogen
  3.    carbonate
  4.    Phosphorus
 Discuss Question
Answer: Option B. -> hydrogen
Answer: (b).hydrogen
Question 83. All are examples of radicals except
  1.    hydroxide
  2.    Sulphate
  3.    ammonium
  4.    aluminum
 Discuss Question
Answer: Option D. -> aluminum
Answer: (d).aluminum
Question 84. Valency of hydroxide ion (OH) is
  1.    -1
  2.    -2
  3.    -3
  4.    -4
 Discuss Question
Answer: Option A. -> -1
Answer: (a).-1
Question 85. Formula of copper carbonate is
  1.    CuCO₃
  2.    CuCO₂
  3.    CuCHO₃
  4.    CuCOH
 Discuss Question
Answer: Option A. -> CuCO₃
Answer: (a).CuCO₃
Question 86. Friedrich August Kekule's structure of 'benzene' was the inspiration of a
  1.    chemist
  2.    nature
  3.    dream
  4.    cloud
 Discuss Question
Answer: Option C. -> dream
Answer: (c).dream
Question 87. In most of the organic compounds, the group found is
  1.    benzene ring
  2.    aldehydes
  3.    ketone
  4.    carboxylic
 Discuss Question
Answer: Option A. -> benzene ring
Answer: (a).benzene ring
Question 88. Chlorobenzene is one of
  1.    halogens
  2.    amines
  3.    Halogenoarenes
  4.    hydrocarbons
 Discuss Question
Answer: Option C. -> Halogenoarenes
Answer: (c).Halogenoarenes
Question 89. Vanillin is used to give flavor in
  1.    ice-cream
  2.    chocolate
  3.    frozen yogurt
  4.    sweets
 Discuss Question
Answer: Option C. -> frozen yogurt
Answer: (c).frozen yogurt
Question 90. π-bonds in benzene spread over all six carbons, hence they are called
  1.    delocalized
  2.    spectators
  3.    inhibitors
  4.    invaders
 Discuss Question
Answer: Option A. -> delocalized
Answer: (a).delocalized

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