1 )
A certain charge liberate 0.8 g of oxygen . The same charge will liberate , how
many g of silver : -
A ) 10.8 g , B
) 19.2 g ,
C ) 41 g , D
) None of these ,
Correct
Answer : - A ) 10.8 g ,
Solution : -
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2 )
If 1 A of current is passed through CuSO4 solution for 10 secs , the number of
copper atoms deposit at the cathode will be about : -
Solution : -
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3 )
At STP , a container has 1 mole of Ar , 2 moles of CO2 , 3 moles of O2 and 4
moles of N2 without changing total pressure . If one mole of O2 is removed ,
then partial pressure of O2 : -
A ) 10 % , B
) 19 % ,
C ) 26 % , D
) None of these ,
Correct
Answer : - C ) 26 % ,
Solution : -
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