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MCQs

Total Questions : 350 | Page 9 of 35 pages
Question 81. Halogen with the highest electronegativity is
  1.    F
  2.    Br
  3.    Cl
  4.    I
 Discuss Question
Answer: Option A. -> F
Answer: (a).F
Question 82. In NaCl, the oxidation number of Cl₂ is reduced from zero to
  1.    +2
  2.    +1
  3.    −1
  4.    −2
 Discuss Question
Answer: Option C. -> −1
Answer: (c).−1
Question 83. The electronegativity of Chlorine (Cl₂) is
  1.    3.04
  2.    3.16
  3.    2.2
  4.    2.55
 Discuss Question
Answer: Option B. -> 3.16
Answer: (b).3.16
Question 84. The electronegativity of Iodine (I₂) is
  1.    3.04
  2.    3.55
  3.    2.2
  4.    2.66
 Discuss Question
Answer: Option D. -> 2.66
Answer: (d).2.66
Question 85. Halogen that can react with noble gases like Xe is
  1.    F
  2.    Cl
  3.    Br
  4.    I
 Discuss Question
Answer: Option A. -> F
Answer: (a).F
Question 86. The Halogens (F₂, Cl₂, Br₂, I₂) get least reactive going
  1.    up the group
  2.    down the group
  3.    across the period
  4.    diagonally
 Discuss Question
Answer: Option B. -> down the group
Answer: (b).down the group
Question 87. Down the Halogen Group (Group-VII), the reactivity
  1.    increases
  2.    decreases
  3.    becomes zero
  4.    constant
 Discuss Question
Answer: Option B. -> decreases
Answer: (b).decreases
Question 88. The system of reaction in which no reactant leaves the reaction mixture is termed as
  1.    open system
  2.    closed system
  3.    semi-open system
  4.    partially closed system
 Discuss Question
Answer: Option B. -> closed system
Answer: (b).closed system
Question 89. The situation in which ions and molecules are constantly reacting is called
  1.    dynamic equilibrium
  2.    constant equilibrium
  3.    reversible
  4.    irreversible
 Discuss Question
Answer: Option A. -> dynamic equilibrium
Answer: (a).dynamic equilibrium
Question 90. The reactions in which products cannot turn back into reactants are termed as
  1.    irreversible reactions
  2.    reversible reactions
  3.    equilibrium reactions
  4.    redox reactions
 Discuss Question
Answer: Option A. -> irreversible reactions
Answer: (a).irreversible reactions

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