1.

Write chemical equations for the following reactions: (i) Calcium metal reacts with water. (ii) Cinnabar is heated in the presence of air (iii) Manganese dioxide is heated with aluminum power. 

Answer»

(i) Ca + H2 Ca(OH)2 + H

(ii) 2HgS + 3O2  2HgO + 2SO2 

(iii) No, reaction takes place because manganese is less reactive than aluminium.



Discussion

No Comment Found

Related InterviewSolutions