R

Ram Sharma • 193.86K Points
Coach 

Q. H2SO4 (< 50% concentration) is corrosive to

(A) Aluminium, mild steel, stainless steel, concrete & tin
(B) Copper, cast iron & high silicon iron (14% Si)
(C) Rubber (butyl and hard), silicone rubber & teflon
(D) Glass, graphite, porcelain & stoneware
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