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MCQs

Total Questions : 228 | Page 21 of 23 pages
Question 201. Consider equation: Pb+2 (aq) + 2OH- (aq) → Pb(OH)₂ (s). precipitate of lead (II) hydroxide will be of
  1.    green color
  2.    blue color
  3.    brown color
  4.    white color
 Discuss Question
Answer: Option D. -> white color
Answer: (d).white color
Question 202. Hydrogen of acids is replaced by
  1.    different metals
  2.    different non-metals
  3.    different gases
  4.    all of the above
 Discuss Question
Answer: Option A. -> different metals
Answer: (a).different metals
Question 203. Number of acid salt formed by HCl is
  1.    0
  2.    1
  3.    2
  4.    3
 Discuss Question
Answer: Option A. -> 0
Answer: (a).0
Question 204. Insoluble salt is
  1.    PbCl₂
  2.    HgCl₂
  3.    NaCl
  4.    both a and b
 Discuss Question
Answer: Option D. -> both a and b
Answer: (d).both a and b
Question 205. In order to test presence of sulphates,
  1.    dilute HNO₃ + Ba(NO₃)₂ shall be added
  2.    dilute HCl shall be added
  3.    dilute NaOH shall be added
  4.    Diazo agent shall be used
 Discuss Question
Answer: Option A. -> dilute HNO₃ + Ba(NO₃)₂ shall be added
Answer: (a).dilute HNO₃ + Ba(NO₃)₂ shall be added
Question 206. The process of filtration by using glass funnel and filter paper is
  1.    Accurate
  2.    Fast
  3.    Time consuming
  4.    Difficult
 Discuss Question
Answer: Option C. -> Time consuming
Answer: (c).Time consuming
Question 207. Solvent extraction is an equilibrium process and follows
  1.    Boyle's law
  2.    Charle's law
  3.    Distribution law
  4.    Gas law
 Discuss Question
Answer: Option C. -> Distribution law
Answer: (c).Distribution law
Question 208. The reagent that cannot be filtered through Gooch crucible if its base is covered with filter paper
  1.    KMnO₄
  2.    CO₂
  3.    H₂O
  4.    CaCl₂
 Discuss Question
Answer: Option A. -> KMnO₄
Answer: (a).KMnO₄
Question 209. When we do not apply any proper suction, filtration is
  1.    Rapid process
  2.    Have no effect
  3.    Slow process
  4.    Useless process
 Discuss Question
Answer: Option C. -> Slow process
Answer: (c).Slow process
Question 210. Estimation of Na in seawater is an example of
  1.    Numerical analysis
  2.    Quantitative analysis
  3.    Qualitative analysis
  4.    None of above
 Discuss Question
Answer: Option B. -> Quantitative analysis
Answer: (b).Quantitative analysis

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