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Total Questions : 740 | Page 7 of 74 pages
Question 61. The ability of hydrides to be covalent in a period
  1.    Decreases
  2.    Increases
  3.    Remain constant
  4.    None of above
 Discuss Question
Answer: Option B. -> Increases
Answer: (b).Increases
Question 62. Ionization energy of Na (KJ/mol) is
  1.    513
  2.    738
  3.    1451
  4.    1480
 Discuss Question
Answer: Option B. -> 738
Answer: (b).738
Question 63. I-A and II-A group halides are examples of halides
  1.    Ionic
  2.    Covalent
  3.    Amphoteric
  4.    Co-ordinate covalent
 Discuss Question
Answer: Option A. -> Ionic
Answer: (a).Ionic
Question 64. Halides are the binary compounds of
  1.    Hydrogen
  2.    Halogens
  3.    Oxygen
  4.    Nitrogen
 Discuss Question
Answer: Option B. -> Halogens
Answer: (b).Halogens
Question 65. Ionization energy value is expressed in
  1.    Positive figures
  2.    Negative figures
  3.    Sometime positive
  4.    Sometime negative
 Discuss Question
Answer: Option A. -> Positive figures
Answer: (a).Positive figures
Question 66. Coinage metals have conductance
  1.    Low
  2.    Maximum
  3.    Least
  4.    Medium
 Discuss Question
Answer: Option D. -> Medium
Answer: (d).Medium
Question 67. The radius of parent atom is greater than
  1.    Anion
  2.    Cation
  3.    Radical
  4.    Ion
 Discuss Question
Answer: Option B. -> Cation
Answer: (b).Cation
Question 68. Atomic radius decreases in a period due to
  1.    Increase in nuclear charge
  2.    Increase in proton number
  3.    Decrease in nuclear charge
  4.    Increase in number of shells
 Discuss Question
Answer: Option A. -> Increase in nuclear charge
Answer: (a).Increase in nuclear charge
Question 69. Halides with dimensional lattice are
  1.    Covalent
  2.    Amphoteric
  3.    Ionic
  4.    Polymeric
 Discuss Question
Answer: Option C. -> Ionic
Answer: (c).Ionic
Question 70. The oxidation state of "S" in H₂SO₄ is
  1.    -1
  2.    1
  3.    -2
  4.    6
 Discuss Question
Answer: Option D. -> 6
Answer: (d).6

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