Concentrated HCl at 30¬¨‚àûC can be stored in a vessel made of?

1.	Concentrated HCl at 30¬¨‚àûC can be stored in a vessel made of?
A.	PTFE and porcelain
B.	Cast iron and aluminium
C.	Stainless steel and high silicon cast iron
D.	None of these
Answer» B. Cast iron and aluminium

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