IGCSE Chemistry Electrolysis

Polls of Graphite or Platinum through which an electric current enters the electrolyte are collectively called what ?

• Electrodes

• Anode

• Cathode

• Cation

Tags

NGSS.HS-PS1-2

Which statement correctly define redox reaction ?

• A reaction that involve lose of electrons

• A reaction that involve loosing and gaining of electrons

• A reaction that involve gain of electrons

• Non of the above.

Tags

NGSS.HS-PS1-7

In electrolysis, Oxidation occurs in which of the following electrodes?

• Cathode

• Anode

• Both cathode and Anode

• Non of the above

In electrolysis, reduction takes place in which of the following electrodes?

• Cathode

• Anode

• Both cathode and anode

• Non of the above

Tags

NGSS.HS-PS1-7

What is the name of a positively charged ion?

• positron
• proton
• cation
• anion

Tags

NGSS.MS-PS2-3

In an aqueous solution of copper chloride, which ions are attracted to the negative electrode?

• Cu²⁺ and Cl^- and H⁺ and OH^-
• Cu²⁺ and H⁺ 
•  Cl^- and OH^-
• Cu²⁺ 

Tags

NGSS.HS-PS2-5

• A

• B

• C

• D

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-6

• A

• B

• C

• D

Tags

NGSS.HS-PS2-5

• A

• B

• C

• D

B

• A

• B

• C

• D

Tags

NGSS.HS-PS1-5