Question

Among $\left(a\right)N{a}_{2}O,\left(b\right)MgO,\left(c\right)A{l}_2{O}_3,\left(d\right)P_2{O}_5,\left(e\right)C{l}_2{O}_7$, the most basic, most acidic and amphoteric oxide can be respectively :

• A. a, b, c
• B. b, e, c
• C. a, e, c
• D. e, c, a

Answer 1

The correct option is C a, e, c

Alkali metal oxide is most basic: $N{a}_{2}O$
Aluminium oxide is amphoteric : $A{l}_2{O}_3$
Non metallic oxide is acidic: $C{l}_2{O}_7$