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Q.

The percentage abundance of Neon gas in air by volume is 1.8 x 10-x and by weight is 1.0 x 10-y , then x – y = ________

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a

1

b

1.5

c

0

d

0.5

answer is B.

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Detailed Solution

Ne→V →1.5x10-3 ;  W→ 1x10-3

There fore, X-Y=0

 

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The percentage abundance of Neon gas in air by volume is 1.8 x 10-x and by weight is 1.0 x 10-y , then x – y = ________