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30g Mg and 30g O(2) are reacted and the ...

30g Mg and 30g `O_(2)` are reacted and the residual mixture contains:

A

`40g MgO + 20g O_(2)`

B

`45g MgO +15H O_(2)`

C

`50g MgO +10g O_(2)`

D

`60g MgO` only

Text Solution

Verified by Experts

The correct Answer is:
C
`2Mg +O_(2) rarr 2MgO`
48g of Mg combines with 32 g of oxygen give 80g of MgO. Oxygen is limiting reagent.
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