NCERT Class XI Chemistry The s-Block Elements Solutions
© examsnet.com
Question : 28
Total: 32
Write balanced equations for reactions between
(a)N a 2 O 2
(b)K O 2
(c)N a 2 O C O 2
(a)
(b)
(c)
Solution:
(a) N a 2 O 2 + 2 H 2 O H 2 O 2
(b)2 K O 2 + 2 H 2 O H 2 O 2 + O 2
or4 K O 2 ( s ) + 2 H 2 O ( l ) 4 K O H ( a q ) + 3 O 2 ( g )
(c)N a 2 O + C O 2 N a 2 C O 3
(b)
or
(c)
© examsnet.com
Go to Question: