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MCQs

Total Questions : 350 | Page 2 of 35 pages
Question 11. In redox reaction, Ag⁺ ions are their self
  1.    oxidized
  2.    reduced
  3.    stable
  4.    polarized
 Discuss Question
Answer: Option B. -> reduced
Answer: (b).reduced
Question 12. In order to identify precipitates which are obtained can be matched with respecting
  1.    melting point data
  2.    electronegativity
  3.    polarity
  4.    masses
 Discuss Question
Answer: Option A. -> melting point data
Answer: (a).melting point data
Question 13. Solution which contain copper(II) ions (Cu⁺²) is
  1.    alkaline only
  2.    Fehling's solution only
  3.    acidic solution
  4.    alkaline and Fehling's solution
 Discuss Question
Answer: Option D. -> alkaline and Fehling's solution
Answer: (d).alkaline and Fehling's solution
Question 14. An aqueous solution of silver nitrate in excess ammonia called
  1.    ammonical silver nitrate solution only
  2.    Tollen's reagent only
  3.    Fehling's solution
  4.    ammonical silver nitrate solution and Tollen's reagent
 Discuss Question
Answer: Option D. -> ammonical silver nitrate solution and Tollen's reagent
Answer: (d).ammonical silver nitrate solution and Tollen's reagent
Question 15. Presence of carbonyl group (C=O) will reflect the precipitate of color
  1.    red
  2.    orange
  3.    brown
  4.    white
 Discuss Question
Answer: Option B. -> orange
Answer: (b).orange
Question 16. A toxic gas which binds with human hemoglobin and inhibit oxygen binding to blood is
  1.    oxygen
  2.    carbon dioxide
  3.    carbon monoxide
  4.    nitrogen
 Discuss Question
Answer: Option C. -> carbon monoxide
Answer: (c).carbon monoxide
Question 17. What is true about Carbon dioxide?
  1.    it enhances global warming only
  2.    it is pollutant only
  3.    it is toxic
  4.    it enhances global warming and it is pollutant
 Discuss Question
Answer: Option D. -> it enhances global warming and it is pollutant
Answer: (d).it enhances global warming and it is pollutant
Question 18. Non-polar alkanes do not react with
  1.    polar compounds only
  2.    water only
  3.    base
  4.    polar compounds and water
 Discuss Question
Answer: Option D. -> polar compounds and water
Answer: (d).polar compounds and water
Question 19. Cars releases unburnt hydrocarbons, carbon monoxide, acidic nitrogen oxides and
  1.    carcinogens
  2.    bacteria
  3.    noise
  4.    pathogens
 Discuss Question
Answer: Option A. -> carcinogens
Answer: (a).carcinogens
Question 20. If alkane is supplied with plenty of oxygen it will undergo
  1.    complete combustion
  2.    substitution
  3.    addition
  4.    hydrolysis
 Discuss Question
Answer: Option A. -> complete combustion
Answer: (a).complete combustion

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