A red brown gas is released on heating lead nitrate. it is an example ofa)Combination reactionb)Oxidation reactionc)Decomposition reactiond)Reduction reactionCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

The reaction is an example of Decomposition reaction option c..in which a compound splits into two or more compounds or elements..

¶¶ When lead nitrate is heated it splits into

#Lead monoxide (2PbO)

# Oxygen (O2)

# nitrogen dioxide (NO2)

word equation-- lead nitrate - ( heated)-->Lead monoxide+ Oxygen+ nitrogen dioxide

Equation..2Pb( NO3)2--> 2PbO + O2+ NO2

Answer

Option c, Decomposition Reaction is correct friend. See here, as the question itself says that the red brown gas is released on heating the lead nitrates [Pb(NO3)2].

When you heat the Lead nitrate [Pb(NO3)2], it gives Lead oxide [PbO], Oxygen [O2] along with the releasing of brown fumes called Nitrogen dioxide [NO2].

(Note:- Here, brown fume refers to brown gas).

See the belowed chemical equation to understand the concept friend... I have balanced the chemical equation of the reaction of heating the Lead nitrate okay..

2Pb(NO3)2 (s) ===> 2PbO(s) + O2(g)↑ + NO2(g)↑.

As you can see the chemical equation, Lead nitrate is a reactant which is decomposing itself in the presence of heat to give the by products like Lead oxide, Oxygen along with the release of brown fumes called Nitrogen dioxide in the product side of the chemical equation.

You can conclude that a reactant [Pb(NO3)2] is decomposing itself in the presence of heat to give the products called Lead oxide, Oxygen , and Nitrogen dioxide. So, it is an example for Thermal decomposition reaction and also it is known as a Decomposition Reaction.

Hope you have understand the concept friend...

Answer

The red brown gas released when we heat lead nitrate is the nitrogen gas.First when it is a colorless,odorless gas is produced which is known as oxygen after that the nitrogen gas is also released .
This is an example of Decomposition reaction
2Pb(NO3)2(s) ----> 2PbO(s) + O2(g) + NO2(g).

Answer

When lead nitrate is heated, it breaks to form lead monoxide, nitrogen dioxide and oxygen.
Therefore in this reaction one compound, breaks to form three simple substances.
therefore it is a decomposition reaction

Answer

Decomposition Reaction Explanation:

- Decomposition reaction is a type of chemical reaction in which a compound breaks down into simpler substances. In this reaction, a single reactant decomposes into two or more products.

Explanation of the given reaction:

- When lead nitrate (Pb(NO3)2) is heated, it undergoes a decomposition reaction.
- The decomposition of lead nitrate is represented by the following chemical equation:
2Pb(NO3)2 → 2PbO + 4NO2 + O2
(Lead nitrate) → (Lead oxide) + (Nitrogen dioxide) + (Oxygen gas)
- The red-brown gas released during this reaction is nitrogen dioxide (NO2).

Reasons why the given reaction is a decomposition reaction:

- The reaction involves the breakdown of a single compound, lead nitrate, into multiple products.
- The products formed are simpler substances compared to the reactant.
- The reaction is accompanied by the release of a gas, which is nitrogen dioxide in this case.

Why the other options are not correct:

a) Combination reaction: In a combination reaction, two or more substances combine to form a single product. However, in the given reaction, lead nitrate decomposes into multiple products, so it is not a combination reaction.

b) Oxidation reaction: Oxidation reactions involve the addition of oxygen or the removal of hydrogen from a substance. In the given reaction, there is no addition of oxygen or removal of hydrogen, so it is not an oxidation reaction.

d) Reduction reaction: Reduction reactions involve the addition of hydrogen or the removal of oxygen from a substance. Since there is no addition of hydrogen or removal of oxygen in the given reaction, it is not a reduction reaction.

Conclusion:
The red-brown gas released on heating lead nitrate is an example of a decomposition reaction because it involves the breakdown of a single compound into multiple simpler substances.

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