Home
Class 12
CHEMISTRY
On prolonged exposure to air, sodium fin...

On prolonged exposure to air, sodium finally change to :

A

`Na_2CO_3`

B

`Na_2O`

C

`NaOH`

D

`NaHCO_3`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question "On prolonged exposure to air, sodium finally changes to:", we can follow these steps: ### Step 1: Understand the Reaction of Sodium with Air When sodium is exposed to air, it undergoes oxidation. Sodium reacts with oxygen present in the air to form sodium oxide (Na2O) and sodium peroxide (Na2O2). ### Step 2: Formation of Sodium Hydroxide Sodium oxide can further react with moisture (water vapor) in the air to produce sodium hydroxide (NaOH): \[ \text{Na}_2\text{O} + \text{H}_2\text{O} \rightarrow 2\text{NaOH} \] ### Step 3: Reaction of Sodium Hydroxide with Carbon Dioxide Sodium hydroxide can then react with carbon dioxide (CO2) from the air to form sodium carbonate (Na2CO3) and water: \[ 2\text{NaOH} + \text{CO}_2 \rightarrow \text{Na}_2\text{CO}_3 + \text{H}_2\text{O} \] ### Step 4: Conclusion After prolonged exposure to air, sodium ultimately changes to sodium carbonate (Na2CO3). Therefore, the final product of sodium's reaction with air is sodium carbonate. ### Final Answer On prolonged exposure to air, sodium finally changes to sodium carbonate (Na2CO3). ---
Promotional Banner

Similar Questions

Explore conceptually related problems

Silver articles become black on prolonged exposure to air. This is due to the formation of

A prolonged exposure to noise at 95 dB produce

Prolonged use of anabolic steroids in males can lead to

Prolonged exposure of fat or oil in moist ,air and light causes bad smell (rancidity). It is due to

Calcium burns in nitrogen to produce a white powder which dissolves in sufficient water to produce a gas (A) and alkaline solution. The solution on exposure to air produce a thin solid layer of (B) on the surface. Identity the compound (A) and (B)

Calcium burns in nitrogen to produce a white powder which dissolves in sufficient water to produce a gas (A) and alkaline solution. The solution on exposure to air produce a thin solid layer of (B) on the surface. Indentity the compound (A) and (B)

On exposure to air, sodium hydroxide becomes liquid and after sometime it changes to white power. Explain.

Exposure to noise pollution causes

Name the oxide of nitrogen which turns brown on exposure to air. How is it prepared ?

On combustion in excess of air sodium mainly forms :