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MCQs

Total Questions : 212 | Page 20 of 22 pages
Question 191. Carminic acid gives purple color with
  1.    acids (H⁺)
  2.    alkalis (OH⁻)
  3.    weak acids (H⁺)
  4.    none of above
 Discuss Question
Answer: Option B. -> alkalis (OH⁻)
Answer: (b).alkalis (OH⁻)
Question 192. Addition of acid to indicator will shift the equilibrium towards
  1.    right
  2.    left
  3.    up
  4.    down
 Discuss Question
Answer: Option B. -> left
Answer: (b).left
Question 193. In the contact process, a pressure used is just above
  1.    100kPa
  2.    450kPa
  3.    330kPa
  4.    900kPa
 Discuss Question
Answer: Option A. -> 100kPa
Answer: (a).100kPa
Question 194. Scrubbers are composed of
  1.    calcium hydroxide
  2.    calcium carbonate only
  3.    calcium hydroxide
  4.    calcium hydroxide and calcium carbonate
 Discuss Question
Answer: Option D. -> calcium hydroxide and calcium carbonate
Answer: (d).calcium hydroxide and calcium carbonate
Question 195. The excellent equilibrium yield of SO₃ at 450 °C is
  1.    0.1
  2.    0.2
  3.    0.79
  4.    0.97
 Discuss Question
Answer: Option D. -> 0.97
Answer: (d).0.97
Question 196. Sulfur can be mined from the ground and the states exporting it around the world are
  1.    Poland and America
  2.    China and India
  3.    America and England
  4.    Brazil and Poland
 Discuss Question
Answer: Option A. -> Poland and America
Answer: (a).Poland and America
Question 197. The scrubbers acts against unconverted SO₂ and
  1.    neutralize it
  2.    accelerate it
  3.    recycle it
  4.    none of above
 Discuss Question
Answer: Option A. -> neutralize it
Answer: (a).neutralize it
Question 198. To stop emission of SO₂ into atmosphere, the chimneys are covered with
  1.    scrubbers
  2.    converters
  3.    burners
  4.    metallic nets
 Discuss Question
Answer: Option A. -> scrubbers
Answer: (a).scrubbers
Question 199. The raw material required for the production of sulfuric acid is
  1.    sulfur
  2.    air
  3.    water
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 200. The country is more developed if it is utilizing more chemical
  1.    sulfuric acid
  2.    nitric acid
  3.    benzoic acid
  4.    acetic acid
 Discuss Question
Answer: Option A. -> sulfuric acid
Answer: (a).sulfuric acid

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