Formative Checkpoint-01 State true and false 1. Non metals are good conductor of electricity? False, except graphite. Generally metals are good conductor of electricity. 2. Whenever current passes through it causes heating of metal: True 3. The full form of LED is Light Electrical device: False 4. Pure water is bad conductor of electricity: True 5. Tap water conducts electricity through it: True Fill in the blanks: 1. The work done to carry unit charge from infinity to a point in a conductor is called ------. [Electrical potential] 2. SI unit of Electrical potential is ------. [ Volt] 3. The closed conducting path of electric current is called -------. [Electric circuit] 4. ---------- is the work done to carry charge from one end of conductor to other end. [ potential difference] 5. Potential difference is created by using ------- or ---------. [Cell or battery] 6. The rate of the flow of electric charge is called -------. [ Electric current] 7. The direction of electric current is always from ----to ---- terminal of the battery. [Positive, negative] 8. When an electric current flows through a conducting solution, there is change of colour of the solutions. This effect of current is known as --Chemical effect of current] 9. Oxygen bubbles formed on the electrode connected to the ----------- terminal of the battery called anode during electrolysis. [Positive] 10. Hydrogen bubbles formed on the other electrode connected to the ----------- terminal called cathode during electrolysis. [Negative] 11. An electrolyte when dissolve in water produce -----. [Ions] 12. Positively charged ion is called ------. [Cation] 13. Negatively charged ion is called ------. [Anion] 14. Sugar, urea, benzenes Ethyl alcohol are some examples of ------. [Non electrolyte.] 15. During electrolysis Cation gets reduced at -----. [Cathode] and anions gets oxidized at ----- [anode] Download solved paper 8th Science Chapter-14-Chemical Effects Of Current
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