Choose the correct answer:
The metal oxide which can react with acid as well as alkali is:
(a) Silver oxide
(b) Copper (II) oxide
(c) Aluminium oxide
(d) Calcium oxide

Q. The metal oxide which can react with acid as well as alkali is:

Q. The oxide of which react with acids as well as alkalies

Q. An organic acid $\left(A\right)$ reacts with concentrated $H_{2}S{O}_4$ to give neutral oxides $\left(B\right)$, amphoteric oxide $\left(C\right)$ and an acidic oxide $\left(D\right).$ Choose the correct option(s):

Q. The reaction given below represent the processes of reduction to obtain metals from their respective ores.
Arrange them in the following order.
Sodium, aluminium, zinc, chromium, iron, copper and mercury
(a) Metal oxide $+$metal sulphide $\to$ Metal $+{SO}_2$
(b) Metal oxide $+CO\to$ Metal $+{CO}_2$
(c) Metal oxide $+C\to$ Metal $+CO$
(d) Metal oxide $\to$ Metal $+O_2$
(e) Metal oxide $\underset{}{\overset{\Delta }{\to }}$ Metal $+O_2$
(f) Metal oxide $+$Aluminium $\to$ Aluminium oxide $+$ metal
(g) Metal chloride $\to$ Metal $+$ Chlorine