1) Complete the following reactions :-
a) CaO + 2HCI
b) HNO, +
KNO, ,
c)Al2O + 6H
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Answer:
Correct option is A x = Heat
Calcium carbonate on heating decomposes to
form calcium oxide(quick lime) and carbon
dioxide. The equation for this thermal
decomposition reaction can be written as:
CaCOs CaO + CO
Therefore, x in the above reaction is heat.
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