Loading...
"Displacement reactions also play a key role in extracting metals in the middle of the reactivity series." Justify this statement with two examples.
Why can metals high up in the reactivity series not be obtained by reduction of their oxides by carbon ?
Assertion (A) : Carbon reduces the oxides of Sodium and Magnesium. Reason (R) : Sodium and Magnesium have more affinity for Oxygen than Carbon.
Assertion (A): Zinc oxide can be reduced to zinc metal on heating with carbon. Reason (R): Carbon is less reactive than zinc.
With the help of suitable chemical equations, list the two main differences between roasting and calcination. How is metal reduced from the product obtained after roasting/calcination of the ore ? Write the chemical equation for the reaction involved.
A metal oxide on being heated with carbon does NOT produce carbon dioxide. Give a possible explanation for this behaviour of the metal oxide.
© 2026 PadhAiPro. This question is provided for educational purposes.