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Question: Answered & Verified by Expert
A certain reaction occurs in two steps as:



(i) 2SO2g+2NO2g2SO3g+2NOg



(ii) 2NOg+O2g2NO2g



In the reaction,
Chemistryp Block Elements (Group 15, 16, 17 & 18)MHT CETMHT CET 2018
Options:
  • A NO2g is intermediate
  • B NOg is intermediate
  • C NOg is catalyst
  • D O2g is intermediate
Solution:
2317 Upvotes Verified Answer
The correct answer is: NOg is intermediate
On adding equation (1) & (2) we get
2S O 2 +2N O 2 + O 2 2S O 3 +2N O 2
The NO is not considered.
It is a intermediate in the reaction.

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