Which of the following is not used as a medium for high temperature he – McqOptions

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1.	Which of the following is not used as a medium for high temperature heating ?
A.	Dowtherm
B.	mercury
C.	liquid metal (e.g. molten sodium)
D.	fused salts (e.g., an eutectic mixture of 53% KNO₃, 40% NaNO₂and 7% NaNO₃)
Answer» C. liquid metal (e.g. molten sodium)

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