identify the substances that are oxidised and the substances that are reduced in the following reactions
(i)4Na(s)+O2(g)-2Na2O(s)

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Solution

Dear student,

$4 N a + O_{2} \underset{}{\to} 2 N a_{2} O T h e o x i d a t i o n s t a t e o f N a a n d O o n t h e r e a c \tan t s i d e i s z e o r e a c h . T h e o x i d a t i o n s t a t e o f N a a n d O c h a n g e s a s + 1 a n s - 2 r e s p e c t i v e l y . T h u s, t h e o x i d a t i o n s t a t e o f N a i n c r e a s e s f r o m 0 t o + 1 a n d h e n c e i t u n d e r g o e s o x i d a t i o n . W h e r e a s, o x i d a t i o n s t a t e o f O d e c r e a s e s f r o m 0 t o - 2, h e n c e o x y g e n u n d e r g o r e d u c t i o n . R e g a r d s$

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Similar questions

Identify the oxidised and reduced substances in the following reaction:

$4 N a (s) + O_{2} (g) \to 2 N a_{2} O (s)$

Identify the substances that are oxidised and the substances that are reduced in the following reactions.

(i)

(ii)

4 Na (s) + O_{2} (g) \to 2 {Na}_{2} O(s)

4 Na (s) + O_{2} (g) \to 2 {Na}_{2} O(s)

N_{2} H_{4} (l) + 2 H_{2} O_{2} (l) ⟶ N_{2} (g) + 4 H_{2} O (l)

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