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MCQs

Total Questions : 273 | Page 21 of 28 pages
Question 201. Formula of carbonic acid indicates that
  1.    for each ion of Carbon, two ions of hydrogen are required
  2.    for each ion of H, two carbonate ions are required
  3.    for each carbonate ion, two ions of hydrogen are required
  4.    for two carbonate ions, three ions of Hydrogen are required
 Discuss Question
Answer: Option C. -> for each carbonate ion, two ions of hydrogen are required
Answer: (c).for each carbonate ion, two ions of hydrogen are required
Question 202. Formula K₂SO₄ indicates that
  1.    2 ions of Kalium are combined with 4 molecules of oxygen
  2.    2 ions of Kalium are combined with 1 sulfate ion
  3.    2 ions of potassium are combined with one sulfur and 4 oxygen molecules
  4.    1 ion of potassium is combined with 1 sulfate ion
 Discuss Question
Answer: Option B. -> 2 ions of Kalium are combined with 1 sulfate ion
Answer: (b).2 ions of Kalium are combined with 1 sulfate ion
Question 203. Sulfite ion can be written symbolically as
  1.    SO₄−2
  2.    SO₃−2
  3.    SO₄−3
  4.    S−2
 Discuss Question
Answer: Option B. -> SO₃−2
Answer: (b).SO₃−2
Question 204. Formula of Calcium Hydrogen Carbonate indicates
  1.    that for each ion of hydrogen carbonate, two ions of Ca are required
  2.    that for each ion of Ca, two ions of hydrogen carbonate are required
  3.    that the valence of HCO₃ is −2
  4.    1 hydrogen ion combined to 1 calcium and 3 carbonate ions
 Discuss Question
Answer: Option B. -> that for each ion of Ca, two ions of hydrogen carbonate are required
Answer: (b).that for each ion of Ca, two ions of hydrogen carbonate are required
Question 205. Chemical formula of Magnesium Carbonate is
  1.    MgCO₃. H₂O
  2.    MgCO₃
  3.    Mg₂CO₃
  4.    Mg₃CO₃
 Discuss Question
Answer: Option B. -> MgCO₃
Answer: (b).MgCO₃
Question 206. If valency of both Calcium and Sulphate ion is 2, formula of calcium sulphate will be
  1.    CaSO₃
  2.    CaSO₄
  3.    Ca₂(SO₄)2
  4.    Ca₂SO₄
 Discuss Question
Answer: Option B. -> CaSO₄
Answer: (b).CaSO₄
Question 207. Radical refers to a
  1.    positive valency
  2.    negative valency
  3.    group of atoms
  4.    numbers of electron shells
 Discuss Question
Answer: Option C. -> group of atoms
Answer: (c).group of atoms
Question 208. In 10H₂O, total units of water molecules are
  1.    130
  2.    150
  3.    180
  4.    220
 Discuss Question
Answer: Option C. -> 180
Answer: (c).180
Question 209. Formula of calcium hydrogen sulphate is
  1.    CaHSO₄
  2.    Ca(HCO₃)₃
  3.    Ca(HSO₄)₃
  4.    Ca(HSO₄)₂
 Discuss Question
Answer: Option D. -> Ca(HSO₄)₂
Answer: (d).Ca(HSO₄)₂
Question 210. Valency is also referred to as
  1.    the combining power
  2.    the volatility
  3.    the rigidity
  4.    the number of electron shells
 Discuss Question
Answer: Option A. -> the combining power
Answer: (a).the combining power

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