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1g of Mg is burnt in a vessel containing...

1g of Mg is burnt in a vessel containing 0.5 g of oxygen. The remaining unreacted is

A

0.25g of Mg

B

0.1g of Mg

C

0.1g of `O_(2)`

D

0.75g of Mg

Text Solution

Verified by Experts

The correct Answer is:
A
`2Mg+O_(2)rarr2MgO`
`48g-32g`
`0.75g-0.5g`
`therefore` Mg remaining = `1-0.75=0.25g`
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