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MCQs

Total Questions : 212 | Page 16 of 22 pages
Question 151. Nitric acid reacts with copper to form
  1.    copper oxides
  2.    copper nitrate
  3.    copper sulphate
  4.    None of Above
 Discuss Question
Answer: Option D. -> None of Above
Answer: (d).None of Above
Question 152. Consider equation P₂O₅ + H₂O → HPO₃. moles of products produced after balancing equation are
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 153. A poisonous gas released in exhaust fumes is
  1.    SO₂
  2.    CO₂
  3.    CO
  4.    P₂O₅
 Discuss Question
Answer: Option C. -> CO
Answer: (c).CO
Question 154. Basic oxides neutralize
  1.    water
  2.    acids
  3.    non-metal oxides
  4.    hydroxonium ions
 Discuss Question
Answer: Option B. -> acids
Answer: (b).acids
Question 155. Consider equation ZnO + NaOH + H₂O → Na₂Zn(OH)₄. Moles of NaOH required to balance equation would be
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 156. Most metals react with acids to form
  1.    salt
  2.    hydrogen gas
  3.    alkalis
  4.    both a and b
 Discuss Question
Answer: Option D. -> both a and b
Answer: (d).both a and b
Question 157. H₂SO₃ is formula of
  1.    Sulfatic acid
  2.    Sulfuric acid
  3.    Sulfourous acid
  4.    Sulfite acid
 Discuss Question
Answer: Option C. -> Sulfourous acid
Answer: (c).Sulfourous acid
Question 158. Vinegar has a pH of
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option C. -> 3
Answer: (c).3
Question 159. Consider equation ZnO + NaOH + H₂O → Na₂Zn(OH)₄. Moles of product required to balance equation would be
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option A. -> 1
Answer: (a).1
Question 160. Alkalis turn Universal indicators
  1.    blue
  2.    red
  3.    green
  4.    yellow
 Discuss Question
Answer: Option A. -> blue
Answer: (a).blue

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