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MCQs

Total Questions : 228 | Page 17 of 23 pages
Question 161. Consider reaction: AgNO₃ + NaCl → AgCl + NaNO₃. state of NaNO₃ will be
  1.    solid
  2.    aqueous
  3.    gaseous
  4.    liquid
 Discuss Question
Answer: Option B. -> aqueous
Answer: (b).aqueous
Question 162. If hydrogen (H) of an acid (H+) is partially replaced by a metal, it forms
  1.    neutral oxides
  2.    amphoteric oxides
  3.    acid salt
  4.    salt
 Discuss Question
Answer: Option C. -> acid salt
Answer: (c).acid salt
Question 163. Sufficient hemoglobin in blood can be tested by adding a drop of
  1.    Zinc Sulphate
  2.    Copper Sulphate
  3.    Magnesium Sulphate
  4.    Potassium Sulphate
 Discuss Question
Answer: Option B. -> Copper Sulphate
Answer: (b).Copper Sulphate
Question 164. Incorrect statement is: Fizzy sweets _______
  1.    contain sodium hydrogen acetate.
  2.    makes tongue feel cold.
  3.    eating is an endothermic reaction.
  4.    are produced in chewing food.
 Discuss Question
Answer: Option A. -> contain sodium hydrogen acetate.
Answer: (a).contain sodium hydrogen acetate.
Question 165. If metal hydroxide (-OH-) and acid (H+) reaction to form Potassium Nitrate (KNO₃), other by-product will be
  1.    water
  2.    hydrogen
  3.    Carbon dioxide
  4.    water and carbon dioxide
 Discuss Question
Answer: Option A. -> water
Answer: (a).water
Question 166. Chlorate ion is the
  1.    oxidizing agents
  2.    reducing agents
  3.    bleaching agent
  4.    none of above
 Discuss Question
Answer: Option C. -> bleaching agent
Answer: (c).bleaching agent
Question 167. Disproportionation refers to
  1.    self oxidation only
  2.    self reduction only
  3.    cross oxidation
  4.    self oxidation and reduction
 Discuss Question
Answer: Option D. -> self oxidation and reduction
Answer: (d).self oxidation and reduction
Question 168. The specific Redox reaction of chlorine is known as
  1.    disproportionation
  2.    oxidation
  3.    reduction
  4.    redox chlorination
 Discuss Question
Answer: Option A. -> disproportionation
Answer: (a).disproportionation
Question 169. In an optimum temperature, Chlorine reacts with dilute alkalis by
  1.    oxidizing some atoms only
  2.    reducing some atoms only
  3.    neutralizing some ions
  4.    oxidizing and reducing some atoms
 Discuss Question
Answer: Option D. -> oxidizing and reducing some atoms
Answer: (d).oxidizing and reducing some atoms
Question 170. After Neon (Ne), the enthalpy change of vaporization is highest in
  1.    Helium (He)
  2.    Xenon (Xe)
  3.    Krypton (Kr)
  4.    Argon (Ar)
 Discuss Question
Answer: Option B. -> Xenon (Xe)
Answer: (b).Xenon (Xe)

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