Which of the following metals are regarded as refractory metals? – McqOptions

MCQOPTIONS

1.	Which of the following metals are regarded as refractory metals?
A.	Niobium and tungsten
B.	Molybdenum only
C.	Niobium, molybdenum, and tungsten
D.	Tungsten and molybdenum only
Answer» D. Tungsten and molybdenum only

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