Question Text
Question 1 :
The potential difference between the terminals of an electric heater is 60 V when it draws a current of 4 A from the source. What current will the heater draw if the potential difference is increased to 120 V?
Question 2 :
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In the above circuit diagrams, a cell, a resistor, a key and ammeter are arranged. The current recorded in the ammeter will be
Question 4 :
Most carbon compounds are poor conductors of electricity. Is it TRUE OR FALSE?
Question 5 :
A solution of a substance 'X' is used for white washing
Write the formula of 'X'.
Question 6 :
Translate the following statements into chemical equations and then balance them:
Hydrogen gas combines with nitrogen to form ammonia.
Question 7 :
Compound X and aluminium are used to join railway tracks. The reaction taking place is called 'Thermite reaction'. Is this statement TRUE or FALSE?
Question 9 :
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Write the name of the above functional group.