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Assertion (A): Beryllium carbonate is kept in the atmosphere of carbon dioxide.
Reason (R): Beryllium carbonate is unstable and decomposes to give beryllium oxide and carbon dioxide:
(a) Both A and Rare true and R is the correct explanation of A.
(b) Both A and R are true 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.

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A is the correct answer
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Answer: A BeCO3?−−?BeO+CO2According to Le Chatelier's principle one simply has to store it under a CO2 atmosphere to push the equilibrium to the left.BeCO3?−?BeO+CO2 in excess When there is no CO2 atmosphere the equilibrium is pushed to the right, which would be the "normal" case under...
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Answer: A

BeCO3?−−?BeO+CO2
According to Le Chatelier's principle one simply has to store it under a CO2 atmosphere to push the equilibrium to the left.
BeCO3?−?BeO+CO2 in excess

When there is no CO2 atmosphere the equilibrium is pushed to the right, which would be the "normal" case under standard conditions.
BeCO3?−?BeO+CO2

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