electrolytes non electrolytes electricity liquids

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In electrolysis of concentrated HCl, at cathode

In electrolysis of concentrated HCl, at cathode
  • A. oxygen gas is given off
  • B. hydrogen gas is given off
  • C. chlorine gas is given off at anode
  • D. hydrogen chloride is given off
  • Correct Answer: Option C

Difficulty of discharge is lowest in

Difficulty of discharge is lowest in
  • A. potassium ions
  • B. sodium ions
  • C. copper ions
  • D. silver ions
  • Correct Answer: Option D

Difficulty of discharge is highest in

Difficulty of discharge is highest in
  • A. calcium ions
  • B. copper ions
  • C. lead ions
  • D. silver ions
  • Correct Answer: Option A

If molten Lead Bromide (PbBr2) is electrolyzed,

If molten Lead Bromide (PbBr2) is electrolyzed,
  • A. at anode, brown fumes of bromide gas are given off
  • B. at anode, molten lead can be seen
  • C. at cathode, brown fumes can be seen
  • D. at cathode, lead bromide can be seen
  • Correct Answer: Option A

Reactivity series of metals is also called as the

Reactivity series of metals is also called as the
  • A. preferential series
  • B. electrochemical series
  • C. electrolytic series
  • D. selective discharge series
  • Correct Answer: Option B