Heating steel to bright redness and then cooling suddenly by plunging it into oil or water, makes it [MP PET 1990]

Heating steel to bright redness and then cooling suddenly by plunging

1.	Heating steel to bright redness and then cooling suddenly by plunging it into oil or water, makes it [MP PET 1990]
A.	Hard and pliable
B.	Soft and pliable
C.	Soft and brittle
D.	Hard and brittle
Answer» E.

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Heating steel to bright redness and then cooling suddenly by plunging it into oil or water, makes it [MP PET 1990]

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