2 gram of Lead Nitrate powder is taken in a boiling tube. The boiling tube is heated over a flame. Now answer the following

(A) State the colour of the fumes evolved and the Residue left.

(B) Name the type of chemical reaction that has taken place stating its balanced chemical equation

Open in App

Solution

Part (a) Colour of fume and residue
Lead nitrate before heating: White
Color of lead nitrate after heating: Yellow due to Lead oxide
Color of fumes: Reddish-brown due to nitrogen dioxide

Part (b): Type of chemical reaction
The decomposition of lead nitrate $(P b (N O_{3})_{2})$ takes place when heat is provided. So, this is an example of a thermal decomposition reaction.
Thermal decomposition of Lead nitrate leads to the formation of Lead oxide $(P b O)$ , Nitrogen dioxide $(N_{2})$ and oxygen $(O_{2})$ .
The balenced chemical reaction can be represented as:
$2 P b (N O_{3})_{2} (s) Δ - \to 2 P b O (s) + 4 N O_{2} (g) + O_{2} (g)$

Suggest Corrections

156

Similar questions

2 grams of Lead Nitrate powder is taken in a boiling tube . It is heated over flame. Name the residue left.

Q. On heating blue coloured powder of copper (II) nitrate in a boiling tube, copper oxide, a colourless gas

X

and a brown gas

Y

is formed.
Identify the gases

X

and

Y

Identify the type of chemical reaction involved.
Write a balanced chemical equation of the above reaction.

Q. On heating blue coloured powder of copper(II) nitrate in a boiling tube copper oxide (black), oxygen gas and a brown gas X is formed. What is the balanced chemical equation for the reaction?

Question 39
On heating blue-colored powder of copper (II) nitrate in a boiling tube, copper oxide (black), oxygen gas, and a brown gas X are formed

(a) Write a balanced chemical equation of the reaction.
(b) Identity the brown gas X evolved.
(c) Identity the type of reaction.
(d) What could be the pH range of the aqueous solution of the gas X?

Question 39

On heating blue coloured powder of copper (II) nitrate in a boiling tube, copper oxide (black), oxygen gas and a brown gas X is formed

(a) Write a balanced chemical equation of the reaction.
(b) Identity the brown gas X evolved.
(c) Identity the type of reaction.
(d) What could be the pH range of aqueous solution of the gas X?

Join BYJU'S Learning Program

2 gram of Lead Nitrate powder is taken in a boiling tube. The boiling tube is heated over a flame. Now answer the following (A) State the colour of the fumes evolved and the Residue left. (B) Name the type of chemical reaction that has taken place stating its balanced chemical equation

2 gram of Lead Nitrate powder is taken in a boiling tube. The boiling tube is heated over a flame. Now answer the following

(A) State the colour of the fumes evolved and the Residue left.

(B) Name the type of chemical reaction that has taken place stating its balanced chemical equation