MEDIUM
8th CBSE
IMPORTANT
Earn 100

Is it safe for the electrician to carry out electrical repairs outdoors during heavy downpour?

Important Questions on Chemical Effects of Electric Current

EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 14 - Chemical Effects of Electric Current>ASSESSMENT ZONE>Q E
List any two metals used for electroplating objects?
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 14 - Chemical Effects of Electric Current>ASSESSMENT ZONE>Q E
Name the gases liberated at the electrodes during electrolysis of water?
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 14 - Chemical Effects of Electric Current>ASSESSMENT ZONE>Q E
Which substances are formed at the electrodes when electrolysis of copper chloride is carried out?
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 14 - Chemical Effects of Electric Current>ASSESSMENT ZONE>Q E
Name a device which glows even when a weak electric current passes through it.
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 14 - Chemical Effects of Electric Current>ASSESSMENT ZONE>Q F
Explain the term electrolysis.
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 14 - Chemical Effects of Electric Current>ASSESSMENT ZONE>Q F
Define electroplating. Write any two uses of electroplating.
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 14 - Chemical Effects of Electric Current>ASSESSMENT ZONE>Q F
Ajay bought a bottle that was labelled as distilled water. He suspected it to be tap water. What test he could use without adding any chemicals to it to find out for sure?
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 14 - Chemical Effects of Electric Current>ASSESSMENT ZONE>Q F
Differentiate between conductors and insulators.