A) 800 mL
B) 200 mL
C) 10 mL
D) zero
Correct Answer: C
Solution :
Noble gases constitute about 1% of the total volume of air. The remaining 99% volume is mainly due to oxygen and nitrogen. When 1 L (1000 mL) of air is passed over heated copper, oxygen is consumed and on further passing over magnesium, nitrogen is consumed according to equations : \[2Cu+{{O}_{2}}\to 2CuO\] \[3Mg+{{N}_{2}}\to M{{g}_{3}}{{N}_{2}}\] In this way about 990 mL of air is consumed. The remaining volume of about 10 mL is due to mainly Ar and other noble gases.You need to login to perform this action.
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