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10 g of a mixture of CaCO3 and MgCO3 has...

10 g of a mixture of `CaCO_3` and `MgCO_3` has 37.5% `MgCO_3`. What amount of `CO_2` is produced at STP when the mixture is strongly heated?

A

`1.3 L`

B

`2.4 L`

C

`0.9 L`

D

`4.6 L`

Text Solution

Verified by Experts

The correct Answer is:
B
Both the carbonates decompose.
` MgCO_3 ` is `37.5 % ` of `10 g = 3.75 `g
` (##MTG_NEET_GID_CHE_XI_C01_E01_120_S01.png" width="80%">
` ( 84 )/(3.75 ) ( 22.4)/(V_1) implies V_1 = 1L`
` (##MTG_NEET_GID_CHE_XI_C01_E01_120_S02##) `
`(100)/(6.25 ) = (22.4 )/(V_2) implies V_2 = 1.4 L`
`V =V_1 +V_2 = 2.4 L`
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