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Chemistry

ACIDS AND BASES MCQs

Total Questions : 212

Page 1 of 22 pages
Question 1. When an acid (H+) is added to alkali (OH-), product is
  1.    hydroxides
  2.    water
  3.    salts
  4.    hydrogen gas
 Discuss Question
Answer is Option C. -> salts
Answer: (c).salts
Question 2. Excess acidity caused by acid rain can be neutralized by adding
  1.    more fertilizers
  2.    by removing the acidified soil
  3.    by adding P₂O₅
  4.    by adding lime
 Discuss Question
Answer is Option D. -> by adding lime
Answer: (d).by adding lime
Question 3. K₂O + H₂O →
  1.    K(OH)₃
  2.    KOH
  3.    KOH.H₂O
  4.    KO + H₂ + O₂
 Discuss Question
Answer is Option B. -> KOH
Answer: (b).KOH
Question 4. More corrosive acid is
  1.    H₂CO₃
  2.    H₂SO₃
  3.    HNO₃
  4.    C₆H₈O₇
 Discuss Question
Answer is Option C. -> HNO₃
Answer: (c).HNO₃
Question 5. Mineral acids are
  1.    naturally occurring
  2.    man made
  3.    include malic acid
  4.    include formic acid
 Discuss Question
Answer is Option A. -> naturally occurring
Answer: (a).naturally occurring
Question 6. Amphoteric oxides react with an alkali to form
  1.    salt
  2.    water
  3.    acids
  4.    both a and b
 Discuss Question
Answer is Option D. -> both a and b
Answer: (d).both a and b
Question 7. Consider equation Al₂O₃ + NaOH + H₂O →NaAl(OH)₄. Balancing of equation requires how many moles of NaOH?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer is Option B. -> 2
Answer: (b).2
Question 8. Soda water (H₂CO₃(aq)) has a pH of
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer is Option D. -> 4
Answer: (d).4
Question 9. In presence of phenolphthalein, alkali shows
  1.    blue color
  2.    violet color
  3.    pink color
  4.    green color
 Discuss Question
Answer is Option C. -> pink color
Answer: (c).pink color
Question 10. A pH of 7 is of
  1.    sugar solution
  2.    salt solution
  3.    weak acids and bases
  4.    both a and b
 Discuss Question
Answer is Option D. -> both a and b
Answer: (d).both a and b
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Sub Topics

  • Acids And Bases
  • Atomic Structure
  • Basic Chemistry
  • Chemical Bonding
  • Chemical Energy
  • Chemical Formulae And Chemical Equations
  • Chromatography And Methods Of Purification
  • Electricity And Chemistry
  • Elements
  • Gases
  • Ions And Gases
  • Liquids And Solids
  • Reactions And Rate Of Reaction
  • Redox Reactions

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