MEDIUMMCQ SINGLENEET ChemistryInorganic ChemistryEnvironmental ChemistryPrevious Year Questions
Assertion: (A) London smog is produced when carbon soot particles combine with gaseous oxides of sulphur. Reason: Presence of carbon particles and SO2 makes it reducing in nature. (AIIMS 2017)
A.Both A and R are correct and R is the correct✓ Correct
B.Both A and R are correct but R is not the correct
C.A is correct but R is incorrect
D.Both A and R are incorrect
Explanation
Both Assertion and Reason are correct and Reason is the correct explanation of Assertion. London smog occurs in cold humid climate, when carbon soot particles combine with gaseous oxides of sulphur, present in atmosphere. Due to presence of carbon particles and SO2 it is reducing in nature. This smog causes lung and throat irritation and in high concentration it leads to death.