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MCQs

Total Questions : 425 | Page 37 of 43 pages
Question 361. Lone pairs in Sulphur hexafluoride are
  1.    0
  2.    1
  3.    2
  4.    3
 Discuss Question
Answer: Option A. -> 0
Answer: (a).0
Question 362. Lone pair of electrons in ammonia is
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option A. -> 1
Answer: (a).1
Question 363. The molecular structure of an ammonia molecule is
  1.    tetrahedral
  2.    linear
  3.    triangular pyramidal
  4.    trigonal
 Discuss Question
Answer: Option C. -> triangular pyramidal
Answer: (c).triangular pyramidal
Question 364. The bond angles in ammonia NH₃ are
  1.    107°
  2.    120°
  3.    109.5°
  4.    87.5°
 Discuss Question
Answer: Option A. -> 107°
Answer: (a).107°
Question 365. Lone pair of electrons (e⁻) in water are
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 366. Cationic radius decreases when effective nuclear charge on ion
  1.    remain same
  2.    decrease
  3.    increase
  4.    fluctuate
 Discuss Question
Answer: Option C. -> increase
Answer: (c).increase
Question 367. In comparison of electronegativity values increase in a period with decrease in (structure O)
  1.    atomic size
  2.    atomic radius
  3.    atomic number
  4.    ionic radius
 Discuss Question
Answer: Option A. -> atomic size
Answer: (a).atomic size
Question 368. After loss an electron potassium attains configuration of
  1.    Argon
  2.    neon
  3.    xenon
  4.    helium
 Discuss Question
Answer: Option A. -> Argon
Answer: (a).Argon
Question 369. Electropositive elements are at a higher energy state then the
  1.    ionic radii
  2.    electronegative elements
  3.    neutral elements
  4.    atomic radii
 Discuss Question
Answer: Option B. -> electronegative elements
Answer: (b).electronegative elements
Question 370. Amount of energy which is evolved in bind formation is
  1.    436.44kJmol-1
  2.    436.45kJmol-1
  3.    436.43kJmol-1
  4.    436.46kJmol-1
 Discuss Question
Answer: Option B. -> 436.45kJmol-1
Answer: (b).436.45kJmol-1

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