NEW
Font size
Worksheets( CHEMICAL EFFECTS OF ELECTRIC CURENT ) CLASS 8
Total questions: 23
Worksheet time: 4mins
FULL FORM OF LED ?
light emmiting diode
light emitting diode
light emiiting diode
led
what is electroplating
The process of purifing metals like gold , silver , copper
the liquid that conducts electricity
materials that conduct electricity
the process of depositing a layer of metal on another metals
Anions are attracted towards
cathode
anode
sugar,urea,alchol,benzene are examples of electrolytes
true
false
wood is a
good conductor of electricity
bad conductor of electricity
the charge carried by cations is
negative
positive
none of these
iron is a
good conductor of electricity
bad conductor of electricity
cathode is connected to the
positive charge
negative charge
nothing
food storage cans are made by electroplating
tin on zinc
tin on zinc
tin on copper
tin on iron
the instrument used to conduct electrolysis is called ?
voltameter
ammeter
electrolyte
voltmeter
For making jewellery , gold and silver are electroplated on copper on tin .
TRUE
FALSE
Full form of CFL
compact Fluoresent lamps
compact fluoersent lamps
DOES PURE WATER CONDUCT ELECRICITY ?
NO . BECAUSE IT CANNOT DISSOCIATE INTO IONS .
NO. BECAUSE IT WILL DISSOCIATE INTO IONS .
THE FLOW OF CONDUCTION IS CALLED AS ?
ELECTRIC CHARGE
STATIC CHARGE
THE ELECTRODE CONNECTED TO THE POSITIVE TERMINAL OF A BATTERY IS CALLED ?
CATHODE
ANODE
THE ELECTRODE CONNECTED TO THE NEGATIVE TERMINAL OF THE BATTERY IS CALLED ?
CATHODE
ANODE
WILLIAM NICHOLSON WAS THE FIRST PERSON TO DEMONSTRATE
ELECTROPLATING
ELECTROLYSIS OF WATER
PURE WATER IS A
GOOD CONDUCTOR OF ELECTRICITY
BAD CONDUCTOR OF ELECTRICITY
POOR CONDUCTOR OF ELECTRICITY
DISTILLED WATER IS A
GOOD CONDUCTOR OF ELECTRICITY
POOR CONDUCTOR OF ELECTRICITY
BAD CONDUCTOR OF ELECTRICITY
TAP WATER IS A
POOR CONDUCTOR OF ELECTRICITY
BAD CONDUCTOR OF ELECTRICITY
GOOD CONDUCTOR OF ELECTRICITY
THE PROCESS OF ELECTROLYSIS IS CARRIED OUT IN APPARATUS CALLED
ELECTROLYTIC CELL OR VOLTAMETER
VOLTAMETER
ALL OF THE ABOVE
NOTHING
MATERIALS THAT CONDUCT ELECTRICITY ARE CALLED AS
CONDUCTORS
INSULATORS
The liquid which conducts electricity and undergoes decomposition is called an
Electrolyte
Electrolysis
Electroplating
Electrorefiring
