Question

Give the characteristic test of a) CO2 b) SO2 c) O2 d) H2

Please give long answer

Answer 1

HI
a)ON PASSING CARBON-DIOXIDE THROUGH CALCIUMOXIDE,A WHITE PRECIPITATE OF CALCIUM CARBONATE IS FORMED.
b) IT HAS A PUNGENT ODOURS
c)IT REKINDLES A GLOWING SPLINTER
d)IT IS COMBUSTIBLE AND DOESN'T SUPPORT IN COMBUSTION