Exposure to SO₂ containing chimney gases results in the – McqOptions

MCQOPTIONS

1.	Exposure to SO₂ containing chimney gases results in the
A.	reduction in strength of leather & cloth.
B.	acceleration of corrosion rates of metals.
C.	increased drying & hardening time of paints.
D.	all (a), (b) and (c).
Answer» E.

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