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MCQs

Total Questions : 204 | Page 17 of 21 pages
Question 161. Difficulty of discharge is lowest in
  1.    potassium ions
  2.    sodium ions
  3.    copper ions
  4.    silver ions
 Discuss Question
Answer: Option D. -> silver ions
Answer: (d).silver ions
Question 162. In electrolysis of brine, ions moving to anode include
  1.    sodium + hydrogen ions
  2.    hydroxide + Chloride ions
  3.    sodium + hydroxide ions
  4.    chloride ions + hydrogen gas
 Discuss Question
Answer: Option B. -> hydroxide + Chloride ions
Answer: (b).hydroxide + Chloride ions
Question 163. Difficulty of discharge is highest in
  1.    calcium ions
  2.    copper ions
  3.    lead ions
  4.    silver ions
 Discuss Question
Answer: Option A. -> calcium ions
Answer: (a).calcium ions
Question 164. A suitable constant flow of electricity can be ensured through
  1.    an ammeter
  2.    a rheostat
  3.    a voltmeter
  4.    a galvanometer
 Discuss Question
Answer: Option B. -> a rheostat
Answer: (b).a rheostat
Question 165. In a magnesium-copper battery with dilute acid as electrolyte,
  1.    the bulb can stay bright for very long
  2.    the duration of bulb brightness is shorter
  3.    the bulb gets dimmer
  4.    the bulb cannot be lighten up.
 Discuss Question
Answer: Option B. -> the duration of bulb brightness is shorter
Answer: (b).the duration of bulb brightness is shorter
Question 166. To know, that electricity is flowing through circuit,
  1.    switches are used
  2.    a bulb is attached
  3.    it is held in middle fingers
  4.    a micro chronometer shall be used
 Discuss Question
Answer: Option B. -> a bulb is attached
Answer: (b).a bulb is attached
Question 167. Potassium Hydroxide (KOH), Sodium Hydroxide (NaOH) and Copper Sulfate (CuSO₄) solutions are
  1.    strong electrolyte
  2.    non-electrolyte
  3.    weak electrolyte
  4.    acidic
 Discuss Question
Answer: Option A. -> strong electrolyte
Answer: (a).strong electrolyte
Question 168. Non-conductors include
  1.    non-metals
  2.    plastics
  3.    nylon
  4.    both a and b
 Discuss Question
Answer: Option C. -> nylon
Answer: (c).nylon
Question 169. Ceramics are
  1.    resistant to flow of electricity
  2.    good conductors of electricity
  3.    form of sublimates
  4.    are largely transitioned elements
 Discuss Question
Answer: Option A. -> resistant to flow of electricity
Answer: (a).resistant to flow of electricity
Question 170. Species with higher oxidation are always written in an equation on the
  1.    left hand side
  2.    right hand side
  3.    middle
  4.    nowhere
 Discuss Question
Answer: Option A. -> left hand side
Answer: (a).left hand side

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