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MCQs

Total Questions : 228 | Page 16 of 23 pages
Question 151. The apparatus used for the solvent extraction is
  1.    Beaker
  2.    Volumetric flask
  3.    Separating funnel
  4.    Pipette
 Discuss Question
Answer: Option C. -> Separating funnel
Answer: (c).Separating funnel
Question 152. The sample which is being analyzed is called
  1.    Electrolyte
  2.    Substance
  3.    Analyte
  4.    All of above
 Discuss Question
Answer: Option C. -> Analyte
Answer: (c).Analyte
Question 153. The solution left after the formation of crystals is called
  1.    Residue
  2.    Filtrate
  3.    Mother liquor
  4.    None of above
 Discuss Question
Answer: Option C. -> Mother liquor
Answer: (c).Mother liquor
Question 154. The word chromatography has been derived from
  1.    Latin
  2.    Greek
  3.    German
  4.    English
 Discuss Question
Answer: Option B. -> Greek
Answer: (b).Greek
Question 155. This type of chromatography is used to test water samples to look for pollution in lakes and rivers
  1.    Liquid chromatography
  2.    Gas chromatography
  3.    Thin-layer chromatography
  4.    Paper chromatography
 Discuss Question
Answer: Option A. -> Liquid chromatography
Answer: (a).Liquid chromatography
Question 156. Copper Sulfate CuSO₄ is produced when reaction occurs between warm Sulfuric Acid (H₂SO₄) and
  1.    Copper(s) (Cu)
  2.    Copper Hydroxide (Cu(OH)₂)
  3.    Copper Oxide (CuO)
  4.    all of these
 Discuss Question
Answer: Option C. -> Copper Oxide (CuO)
Answer: (c).Copper Oxide (CuO)
Question 157. Incorrect option is: Anions...
  1.    are negatively charged
  2.    travel to anode during electrolysis
  3.    travel to cathode during electrolysis
  4.    along with a cation forms an ionic salt
 Discuss Question
Answer: Option C. -> travel to cathode during electrolysis
Answer: (c).travel to cathode during electrolysis
Question 158. Upon reaction of carbonates with acids, product includes salt and
  1.    H₂(g)
  2.    H₂O
  3.    CO
  4.    CO₂
 Discuss Question
Answer: Option D. -> CO₂
Answer: (d).CO₂
Question 159. If metal hydroxide and acid reaction to form Potassium Nitrate (KNO₃), reactants will be
  1.    K + HNO₃
  2.    KOH + HNO₂
  3.    KOH + HNO₃
  4.    KOH₂+ HNO₃
 Discuss Question
Answer: Option C. -> KOH + HNO₃
Answer: (c).KOH + HNO₃
Question 160. Metal oxides and acids can be reactants to form salts if
  1.    the metals are transition
  2.    the metals are at risk of sublimation
  3.    the metals themselves do not react with acids
  4.    all of these
 Discuss Question
Answer: Option C. -> the metals themselves do not react with acids
Answer: (c).the metals themselves do not react with acids

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