Which of the following statements with regard to heating of lead nitrate powder over a flame are correct? 1. Brown fumes of NO are released. 2. Colourless O 2 gas is released. 3. It is an example of oxidation reaction. 4. It is an example of thermal decomposition used for the production of NO 2 gas. Select the correct answer using the code given below.

Correct Answer is : 2 and 4 only

UPSC CDS 1 2023 GK Paper

Question : 33 of 120

Marks: +1, -0

Which of the following statements with regard to heating of lead nitrate powder over a flame are correct?
1. Brown fumes of NO are released.
2. Colourless O₂ gas is released.
3. It is an example of oxidation reaction.
4. It is an example of thermal decomposition used for the production of NO₂ gas.
Select the correct answer using the code given below.

1 and 2
2, 3 and 4
1, 3 and 4
2 and 4 only

Validate

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