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MCQs

Total Questions : 740 | Page 11 of 74 pages
Question 101. The oxidation of primary alcohols give
  1.    aldehydes
  2.    ketones
  3.    alcohols
  4.    alkanes
 Discuss Question
Answer: Option A. -> aldehydes
Answer: (a).aldehydes
Question 102. Ketones are formed by the oxidation of
  1.    primary alcohols
  2.    secondary alcohol
  3.    tertiary alcohol
  4.    amines
 Discuss Question
Answer: Option B. -> secondary alcohol
Answer: (b).secondary alcohol
Question 103. Almond essence in cakes and pudding is made from
  1.    ester
  2.    alcohol
  3.    benzaldehyde
  4.    ketone
 Discuss Question
Answer: Option C. -> benzaldehyde
Answer: (c).benzaldehyde
Question 104. The carbonyl compounds have an odor similar to
  1.    almonds
  2.    grapes
  3.    fruits
  4.    blue cheese
 Discuss Question
Answer: Option A. -> almonds
Answer: (a).almonds
Question 105. CH₃CH₂CH₂CH₂CHO is formula for
  1.    methanol
  2.    propanal
  3.    butanal
  4.    pentanal
 Discuss Question
Answer: Option D. -> pentanal
Answer: (d).pentanal
Question 106. Element of Group-IV, that is a metal is called
  1.    Silicon (Si)
  2.    Tin (Sn)
  3.    Carbon (C )
  4.    Germanium (Ge)
 Discuss Question
Answer: Option B. -> Tin (Sn)
Answer: (b).Tin (Sn)
Question 107. As the metallic radii increases in Group II, the density
  1.    increases
  2.    decreases
  3.    remains the same
  4.    depends upon the elements it reacts with
 Discuss Question
Answer: Option A. -> increases
Answer: (a).increases
Question 108. One of the four elements that have the greatest metallic radii is
  1.    Beryllium (Be)
  2.    Calcium (Ca)
  3.    Strontium (Sr)
  4.    Magnesium (Mg)
 Discuss Question
Answer: Option C. -> Strontium (Sr)
Answer: (c).Strontium (Sr)
Question 109. Element of Group-IV that is a non-metals is
  1.    Carbon (C )
  2.    Germanium (Ge)
  3.    Lead (Pb)
  4.    Silicon (Si)
 Discuss Question
Answer: Option A. -> Carbon (C )
Answer: (a).Carbon (C )
Question 110. In Group-IV, the bond energy decreases as we move
  1.    down the Group
  2.    up the group
  3.    diagonally
  4.    across the period
 Discuss Question
Answer: Option A. -> down the Group
Answer: (a).down the Group

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