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MCQs

Total Questions : 425 | Page 5 of 43 pages
Question 41. Arbitrary standard value which is given by fluorine on electro negativity scale is
  1.    4
  2.    5
  3.    6
  4.    7
 Discuss Question
Answer: Option A. -> 4
Answer: (a).4
Question 42. Electron affinity of halogens is
  1.    low
  2.    high
  3.    neutral
  4.    no effect
 Discuss Question
Answer: Option B. -> high
Answer: (b).high
Question 43. Phase in which, atoms and ions are isolated and are free from all external influences is
  1.    gaseous
  2.    liquid
  3.    solid
  4.    both a and b
 Discuss Question
Answer: Option A. -> gaseous
Answer: (a).gaseous
Question 44. Due to increase in nuclear charge pull on electros is increased and size of an atom
  1.    remain same
  2.    increases
  3.    decreases
  4.    both a and b
 Discuss Question
Answer: Option C. -> decreases
Answer: (c).decreases
Question 45. Electron affinity is measure of attraction of nucleus of an atom for the
  1.    same electron
  2.    1st electron
  3.    2nd electron
  4.    extra electron
 Discuss Question
Answer: Option D. -> extra electron
Answer: (d).extra electron
Question 46. Diamond is an example of
  1.    ionic bonds
  2.    covalent bonds
  3.    metallic bonds
  4.    dative bonds
 Discuss Question
Answer: Option B. -> covalent bonds
Answer: (b).covalent bonds
Question 47. Way atoms join together and combine with one another is called as
  1.    isotopes
  2.    alloys
  3.    bonding
  4.    dative bond
 Discuss Question
Answer: Option C. -> bonding
Answer: (c).bonding
Question 48. Giant crystal lattices are only formed in
  1.    ionic compounds
  2.    covalent compounds
  3.    metallic compounds
  4.    dative bond
 Discuss Question
Answer: Option A. -> ionic compounds
Answer: (a).ionic compounds
Question 49. Formation of Cl₂ requires sharing of
  1.    one electron
  2.    one pair of electrons
  3.    three electrons
  4.    two pairs of electrons
 Discuss Question
Answer: Option A. -> one electron
Answer: (a).one electron
Question 50. In formic an ionic bond Magnesium Oxide (MgO), Magnesium
  1.    loses 1 electron
  2.    loses 2 electrons
  3.    gains 1 electron
  4.    gains 2 electros
 Discuss Question
Answer: Option B. -> loses 2 electrons
Answer: (b).loses 2 electrons

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