Assertion :brown fumes of Nitrogen dioxide …

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Assertion :brown fumes of Nitrogen dioxide are produced when Lead Nitrate is heated. Reason : Nitrogen dioxide gas is produced as a byproduct due to thermal decomposition of Lead Nitrate . which is the correct answer from the options

Posted by Shreya Mittal 4 years, 2 months ago

CBSE > Class 10 > Science

1 answers

Preeti Dabral 4 years, 2 months ago

Assertion : Brown fumes are produced when lead nitrate is heated.

This is true.

When lead nitrate is heated strongly, NO₂ and O_²are given out.

In this decomposition reaction, the colourless compound lead nitrate forms a yellow compound, lead monoxide, and brown fumes of nitrogen dioxide gas are evolved.

Reason: Nitrogen dioxide is produced as a by product due to the decomposition of lead nitrate.

This is true.

2 Pb(NO₃)2 → 2 PbO + 4 NO₂ + O₂

Both Assertion and Reason are correct and Reason explains the assertion.

Option A is correct.

1Thank You

ANSWER

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CBSE > Class 10 > Science