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MCQs

Total Questions : 1678 | Page 162 of 168 pages
Question 1611. Which metal is used as a reducing agent in Smelting______?
  1.    C
  2.    Zn
  3.    Al
  4.    Cu
 Discuss Question
Answer: Option A. -> C
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1612. Parke’s process is used in the extraction of________?
  1.    Iron
  2.    Sodium
  3.    Silver
  4.    Zinc
 Discuss Question
Answer: Option C. -> Silver
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1613. In melting of iron, which of the following reactions takes place in Bladt Furnace at 400°C- 600°C________?
  1.    CaO+ SiO2——> CaSiO3
  2.    2FeS+3O2——–> 2Fe+ SO2
  3.    FeSiO3———> FeSiO3
  4.    Fe2O3+ 3CO——–> 2Fe+ 3CO2
 Discuss Question
Answer: Option D. -> Fe2O3+ 3CO——–> 2Fe+ 3CO2
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1614. Electronic Configuration of Calcium (Ca) atom may be written as________?
  1.    Ne, 4p2
  2.    Ar, 4s2
  3.    Ne, 4s2
  4.    Kr,4p2
 Discuss Question
Answer: Option B. -> Ar, 4s2
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1615. Gypsum is______?
  1.    CaSO4
  2.    CaSO4.1/2H2O
  3.    CaSO4,2H2O
  4.    CaSO4.3H2O
 Discuss Question
Answer: Option C. -> CaSO4,2H2O
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1616. Basicity of orthophosphoric acid is________?
  1.    2
  2.    3
  3.    4
  4.    5
 Discuss Question
Answer: Option B. -> 3
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1617. The volume strength of 1.5 N H2O2 solution is_______?
  1.    4.8
  2.    5.2
  3.    8.8
  4.    8.4
 Discuss Question
Answer: Option D. -> 8.4
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1618. The structure of H2O2 is_______?
  1.    Planar
  2.    Non- polar
  3.    Spherical
  4.    Linear
 Discuss Question
Answer: Option B. -> Non- polar
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1619. Ce58 is a member of__________?
  1.    S-block
  2.    P-block
  3.    d-block
  4.    f-block
 Discuss Question
Answer: Option D. -> f-block
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1620. A 10 volume solution of H2O2 means_______?
  1.    10 grams of H2O2 solution liberate 10 mL of O2 at STO
  2.    10 gram equivalents of H2O2 liberates 10 mL of O2 at STP
  3.    10 litres of H2O2 liberates 19 mL of O2 at STP
  4.    1mL of solution of H2O2 liberates 10 mL of O2 at STP
 Discuss Question
Answer: Option D. -> 1mL of solution of H2O2 liberates 10 mL of O2 at STP
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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