EASY
8th CBSE
IMPORTANT
Earn 100

What is a poor conductor?

Important Questions on Chemical Effects of Electric Current

MEDIUM
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 14 - Chemical Effects of Electric Current>NUT Cracker>Q I

In which of the following figures will the conduction tester show deflection?
 

  

 

MEDIUM
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 14 - Chemical Effects of Electric Current>NUT Cracker>Q 1
Why do the free ends of a tester not conduct electricity?
 
MEDIUM
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 14 - Chemical Effects of Electric Current>NUT Cracker>Q 2
Seawater deflects the compass needle more than drinking water does. Why?
MEDIUM
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 14 - Chemical Effects of Electric Current>NUT Cracker>Q 3
Why should electrical repairs not be carried out during a heavy downpour?
EASY
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 14 - Chemical Effects of Electric Current>NaTTY NUT>Q I
_____ (Copper/Graphite) is a non-metal that is a good conductor of electricity.
MEDIUM
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 14 - Chemical Effects of Electric Current>NaTTY NUT>Q I
_____ is a liquid metal that conducts electricity.
MEDIUM
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 14 - Chemical Effects of Electric Current>NaTTY NUT>Q I
During extraction of metals from their ores using the chemical effects of electric current, metal is always produced at the _____. (anode/ cathode)
MEDIUM
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 14 - Chemical Effects of Electric Current>NaTTY NUT>Q I

_____ is produced during the electrolysis of an aqueous solution of sodium chloride. 

(Calcium hydroxide/Sodium hydroxide/Potassium hydroxide)