hy please answer mcq and questions
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choose :
1) LPG .
2)coal gas .
3) attached in pic
4)biogas .
q &a :
1)non - luminous thin zone of the flame , it is the outermost hottest .
2) nitrogen oxide and sulphur dioxide are the pollutants produced while burning a coal .
3)the two conditions necessary for the combustion is air and oxygen .
hope it helps you.......❤✨
if it so please make as brainliest......❤✨