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MCQs

Total Questions : 217 | Page 17 of 22 pages
Question 161. The oxidation number of S in SCl₂ is
  1.    +2
  2.    +3
  3.    +4
  4.    +5
 Discuss Question
Answer: Option A. -> +2
Answer: (a).+2
Question 162. The oxidation number of Magnesium (Mg) in Magnesium Chloride (MgCl₂) is
  1.    +2
  2.    +3
  3.    +4
  4.    +5
 Discuss Question
Answer: Option A. -> +2
Answer: (a).+2
Question 163. The oxidation number of P in PCl₅ is
  1.    +2
  2.    +3
  3.    +4
  4.    +5
 Discuss Question
Answer: Option D. -> +5
Answer: (d).+5
Question 164. The oxidation number of Phosphorus (P) in Phosphorus Chloride (PCl₃) is
  1.    +1
  2.    +2
  3.    +3
  4.    +4
 Discuss Question
Answer: Option C. -> +3
Answer: (c).+3
Question 165. SiO₂ is formed after the reaction of SiCl₄(l) + 2H₂O(l). What is the state of SiO₂?
  1.    solid
  2.    Liquid
  3.    Aqueous
  4.    Gaseous
 Discuss Question
Answer: Option A. -> solid
Answer: (a).solid
Question 166. N₂O, NO, NO₂ are all nitrogen's
  1.    oxates
  2.    oxides
  3.    ions
  4.    isomers
 Discuss Question
Answer: Option B. -> oxides
Answer: (b).oxides
Question 167. Element that has oxidation greater than +4 is
  1.    Na
  2.    Mg
  3.    Si
  4.    P
 Discuss Question
Answer: Option D. -> P
Answer: (d).P
Question 168. Atom is oxidizing agent decreases in oxidation number when nitric acid reacts as
  1.    oxidizing agent
  2.    reducing agent
  3.    metal
  4.    metalloid
 Discuss Question
Answer: Option A. -> oxidizing agent
Answer: (a).oxidizing agent
Question 169. Silver and copper (II) nitrate is yielded upon the reaction of copper with
  1.    silver
  2.    silver nitrate
  3.    silver oxide
  4.    none of above
 Discuss Question
Answer: Option B. -> silver nitrate
Answer: (b).silver nitrate
Question 170. The oxidation number of any isolated element is
  1.    unit
  2.    zero
  3.    infinite
  4.    null
 Discuss Question
Answer: Option B. -> zero
Answer: (b).zero

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