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  • Which of the following reaction give NO2 gas -Option: 1 <img alt="C + HNO_3" src="https://learn.careers360.com/latex-image/?C%20&

Which of the following reaction give NO2 gas -

Option: 1

C + HNO_3


Option: 2

Pb(NO_3)_2 \overset{\Delta}{\rightarrow}


Option: 3

S + HNO_3


Option: 4

All give NO2


Answers (1)

As we have learnt,

 

Formation of nitrogen dioxide by heavy metals -

By heating nitrates of heaving metals

- wherein

2Pb\left ( NO_{3} \right )_{2}\overset{673K}{\rightarrow}4NO_{2}+2PbO+2O

 

 

 C + 4HNO_3 \rightarrow H_2CO_3 + 4NO_2 + CO_2

 

2Pb\left ( NO_{3} \right )_{2}\overset{673K}{\rightarrow}4NO_{2}+2PbO+2O

S+ 6HNO_3 \rightarrow H_2SO_4 + 6NO_2 + 2H_2O

Posted by

Sumit Saini

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