A) Acidic
B) Basic
C) Acid and basic both
D) Neutral
Correct Answer: B
Solution :
Atomic number \[\text{11}\,\to \,Na\,\to \,N{{a}_{2}}O\] \[N{{a}_{2}}O+{{H}_{2}}O\,\to \,\underset{(\text{base})}{\mathop{2NaOH}}\,\]
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