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MCQs

Total Questions : 23 | Page 2 of 3 pages
Question 11. KOH is used in the making of
  1.    drain cleaner
  2.    antacid
  3.    cement
  4.    liquid soap
 Discuss Question
Answer: Option D. -> liquid soap
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 12. As an electrolyte, water is
  1.    strong
  2.    neutral
  3.    weak
  4.    good insulator
 Discuss Question
Answer: Option C. -> weak
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 13. The acid used for the manufacture of fertilizers and explosives is
  1.    nitric acid
  2.    sulfuric acid
  3.    phosphoric acid
  4.    hydrochloric acid
 Discuss Question
Answer: Option A. -> nitric acid
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 14. If the concentration of H+ is greater than 1 x 10-7 then solution is
  1.    neutral
  2.    basic
  3.    acidic
  4.    aqueous
 Discuss Question
Answer: Option C. -> acidic
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 15. The pH at which methyl red changes color is
  1.    7
  2.    5.5
  3.    3.8
  4.    9
 Discuss Question
Answer: Option B. -> 5.5
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 16. The pH (power of Hydrogen) value of black coffee is
  1.    7
  2.    8
  3.    3
  4.    5
 Discuss Question
Answer: Option D. -> 5
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 17. In pure water, the concentrations of
  1.    H+ and OH- ions are equal
  2.    H+ ions is more
  3.    OH- ions is more
  4.    Cl- is more
 Discuss Question
Answer: Option A. -> H+ and OH- ions are equal
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 18. When a metal replaces hydrogen atom then the compound form is
  1.    oxide
  2.    ether
  3.    salt
  4.    alcohol
 Discuss Question
Answer: Option C. -> salt
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 19. Substances that react with both acids and bases are called
  1.    neutral
  2.    conjugate bases
  3.    amphoteric substances
  4.    conjugate acids
 Discuss Question
Answer: Option C. -> amphoteric substances
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 20. The Bronsted-Lowery acid in the reaction H₂O + NH₃ NH+ ₄ + OH- is
  1.    H₂O
  2.    NH₃
  3.    H-
  4.    NH+₄
 Discuss Question
Answer: Option A. -> H₂O
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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