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MCQs

Total Questions : 228 | Page 18 of 23 pages
Question 171. The Group-II cations increase in ionic radius
  1.    down the group
  2.    across the period (left to right)
  3.    across the period (right to left)
  4.    up the group
 Discuss Question
Answer: Option A. -> down the group
Answer: (a).down the group
Question 172. The charge on any ion depend upon the gain or loss of
  1.    electron
  2.    protons
  3.    neutrons
  4.    positrons
 Discuss Question
Answer: Option A. -> electron
Answer: (a).electron
Question 173. Distortion of the electron cloud of an ion results in
  1.    ion polarization
  2.    charge polarization
  3.    atomic polarization
  4.    electronegativity polarization
 Discuss Question
Answer: Option A. -> ion polarization
Answer: (a).ion polarization
Question 174. Metal atoms usually lose electrons and form
  1.    positive ions
  2.    negative ions
  3.    new atoms
  4.    radioactive ions
 Discuss Question
Answer: Option A. -> positive ions
Answer: (a).positive ions
Question 175. Kazimier Fajans drew a set of rules about
  1.    polarization
  2.    lattice energy
  3.    thermal stability
  4.    reaction kinetics
 Discuss Question
Answer: Option A. -> polarization
Answer: (a).polarization
Question 176. In order to test presence of nitrates,
  1.    dilute HNO₃ shall be added
  2.    dilute HCl shall be added
  3.    dilute NaOH s + Aluminum powder shall be added
  4.    dilute KOH with Al₂O₃ shall be added
 Discuss Question
Answer: Option C. -> dilute NaOH s + Aluminum powder shall be added
Answer: (c).dilute NaOH s + Aluminum powder shall be added
Question 177. In titration, color of indicator can be removed by
  1.    not adding indicator in the beginning
  2.    repeating the process again
  3.    boiling the solution with some animal charcoal
  4.    all of these
 Discuss Question
Answer: Option C. -> boiling the solution with some animal charcoal
Answer: (c).boiling the solution with some animal charcoal
Question 178. Acid salt formed by Phosphoric acid and sodium phosphate is
  1.    sodium hydrogen phosphate NaHPO₄
  2.    sodium dihydrogen phosphate NaH₂PO₄
  3.    sodium trihydrogen phosphate Na₂H₃PO₄
  4.    sodium tetrachloro phosphate NaCH₄Cl₄
 Discuss Question
Answer: Option B. -> sodium dihydrogen phosphate NaH₂PO₄
Answer: (b).sodium dihydrogen phosphate NaH₂PO₄
Question 179. Consider equation: Ca+2 (aq) + 2OH- (aq) → Ca(OH)₂ (s). precipitate of calcium hydroxide will be of
  1.    green color
  2.    blue color
  3.    brown color
  4.    white color
 Discuss Question
Answer: Option D. -> white color
Answer: (d).white color
Question 180. If reactants are Calcium and Nitric acid, method of salt preparation will be
  1.    metal + acid
  2.    metal Oxide + acid
  3.    metal hydroxide and acid
  4.    metal carbonate and acid
 Discuss Question
Answer: Option A. -> metal + acid
Answer: (a).metal + acid

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