Assertion (A) Beryllium carbonate is kept in the atomsphere of carbon dioxide. Reason (R) Beryllium carbonate is unstable and decomposes to given beryllium oxide and carbon dioxide.
A
Both A and R are correct and R is the correct explanation of A
B
Both A and R are correct but R is not the correct explanation of A
C
Both A and R are not correct
D
A is not correct but R is correct
Text Solution
Verified by Experts
The correct Answer is:
A
`BeO` is more stable than `BeCO_(3)` due to small size and high polarising power of `Be^(2+)`. As `BeCO_(3)` is unstable and `BeO` is more stable thus, when `BeCO_(3)` is kept in an atmosphere of `CO_(2)`, a reversible process tales place and stability of `BeCO_(3)` increases. `BeCO_(3) hArr BeO + CO_(2)`
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