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MCQs

Total Questions : 228 | Page 8 of 23 pages
Question 71. Insoluble Sulphates are
  1.    CaSO₄
  2.    BaSO₄
  3.    CuSO₄
  4.    PbSO₄
 Discuss Question
Answer: Option C. -> CuSO₄
Answer: (c).CuSO₄
Question 72. Consider equation: Zn+2(aq) + 2OH-(aq) → Zn(OH)₂(s). precipitate of Zinc 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 73. Acid salts are formed by
  1.    Phosphoric acid
  2.    Carbonic acid
  3.    Sulphuric acid
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Answer: (d).all of these
Question 74. Acid salt formed by H₃PO₄ and Ca₃(PO₄)₂ is
  1.    disodium hydrogen phosphate Na₂HPO₄
  2.    sodium hydrogen phosphate NaHPO₄
  3.    disodium hydrophosphite Na₂HPO₃
  4.    disodium chloro phosphate Na₂ClPO₄
 Discuss Question
Answer: Option A. -> disodium hydrogen phosphate Na₂HPO₄
Answer: (a).disodium hydrogen phosphate Na₂HPO₄
Question 75. Replaceable hydrogen atoms in H₂SO₄ are
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 76. In the chemical equation, the symbol 'aq' represents
  1.    aqueous only
  2.    large amount of water only
  3.    concentrated
  4.    aqueous and large amount of water
 Discuss Question
Answer: Option D. -> aqueous and large amount of water
Answer: (d).aqueous and large amount of water
Question 77. The enthalpy change of solution involves release or absorption of energy by adding 1 mole of ionic solid in sufficient
  1.    alcohol
  2.    water
  3.    gas
  4.    base
 Discuss Question
Answer: Option B. -> water
Answer: (b).water
Question 78. Lattice energy is inversely proportional to sum of radii of
  1.    anion only
  2.    cation only
  3.    ions
  4.    anion and cation
 Discuss Question
Answer: Option D. -> anion and cation
Answer: (d).anion and cation
Question 79. The energy released by gaseous ions when dissolving in water is called enthalpy change of
  1.    solution
  2.    hydration
  3.    atomization
  4.    electron affinity
 Discuss Question
Answer: Option B. -> hydration
Answer: (b).hydration
Question 80. After ionic salts come in contact with water, they form bonds called
  1.    ion-dipole bonds
  2.    ionic bonds
  3.    co-ordinate bonds
  4.    dative bonds
 Discuss Question
Answer: Option A. -> ion-dipole bonds
Answer: (a).ion-dipole bonds

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