Identify ‘p’, ‘q’ and ‘r’ in the following balanced reaction: p Pb (NO3)2(s) Heat ------> q PbO(s) + r NO2(g) + O2(g)

Question

Identify ‘p’, ‘q’ and ‘r’ in the following balanced reaction Heat 

p Pb (NO₃)₂(s) ^Heat ------> q PbO(s) + r NO₂(g) + O₂(g)

 A. 2,2,4 

B. 2,4,2 

C. 2,4,4 

D. 4,2,2

Answer 1

Correct option is (A) 2,2,4 

2Pb (NO₃)₂(s) ^Heat ------> 2PbO(s) + 4NO₂(g) + O₂(g)