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MCQs

Total Questions : 212 | Page 17 of 22 pages
Question 161. Consider equation Al₂O₃ + NaOH + H₂O →NaAl(OH)₄. Moles of product required to balance reaction would be
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 162. Oven Cleaner has a pH of
  1.    0
  2.    1
  3.    7
  4.    14
 Discuss Question
Answer: Option D. -> 14
Answer: (d).14
Question 163. Distinction between a weak acid or strong acid can be made through
  1.    litmus indicator
  2.    universal indicator
  3.    methyl orange indicator
  4.    Phenolphthalein indicators
 Discuss Question
Answer: Option B. -> universal indicator
Answer: (b).universal indicator
Question 164. Each color is associated with a particular pH in
  1.    litmus indicator
  2.    universal indicator
  3.    methyl orange indicator
  4.    Phenolphthalein indicators
 Discuss Question
Answer: Option B. -> universal indicator
Answer: (b).universal indicator
Question 165. If soil is treated with a mild acid, flowers in Hydrangea shrub are of
  1.    blue color
  2.    pink color
  3.    white color
  4.    brown color
 Discuss Question
Answer: Option A. -> blue color
Answer: (a).blue color
Question 166. PH of soil can be controlled through
  1.    acid rains
  2.    neutralization
  3.    hydrolases
  4.    reversible reactions
 Discuss Question
Answer: Option B. -> neutralization
Answer: (b).neutralization
Question 167. PH is an abbreviation of
  1.    philosophy of humans
  2.    power of humans
  3.    power of hydrogen
  4.    power of hydroxonium ion
 Discuss Question
Answer: Option C. -> power of hydrogen
Answer: (c).power of hydrogen
Question 168. Acid rain has a pH
  1.    well below 3
  2.    3
  3.    4
  4.    well above 4
 Discuss Question
Answer: Option C. -> 4
Answer: (c).4
Question 169. On the description of the proton, the new classification of acid and base was given byA substance which neutralizes a base is calledSaliva neutralizes acid, therefore it is slightly
  1.    J. Bronsted onlyacidalkaline
  2.    T. Lowry onlyalkaliacidic
  3.    J.Daltonalkaloidbasic
  4.    J. Bronsted and T. Lowryhalogenamphoteric
 Discuss Question
Answer: Option C. -> J.Daltonalkaloidbasic
Answer: J. Bronsted and T. Lowryacidalkaline
Question 170. On the description of the proton, the new classification of acid and base was given by
  1.    J. Bronsted only
  2.    T. Lowry only
  3.    J.Dalton
  4.    J. Bronsted and T. Lowry
 Discuss Question
Answer: Option D. -> J. Bronsted and T. Lowry
Answer: (d).J. Bronsted and T. Lowry

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