

MCQOPTIONS
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1. |
On heating anhydrous \[N{{a}_{2}}C{{O}_{3}}\], ........ is evolved [CPMT 1971, 79] |
A. | \[C{{O}_{2}}\] |
B. | Water vapour |
C. | \[CO\] |
D. | No gas |
Answer» E. | |