By annealing, steel

  • A

    Becomes soft

  • B

    Becomes liquid

  • C

    Becomes hard and brittle

  • D

    Is covered with a thin film of $F{e_3}{O_4}$

Similar Questions

All $Zn( +II)$ compounds are white because

Invar, an alloy of $ Fe$  and $ Ni $ is used in watches and meter scale, its characteristic property is

The "spin-only" magnetic moment [ in units of Bohrmagneton, $(\mu _B )$ ] of $Ni^{2+}$ in aqueous solution would be (At. No. $Ni= 28)$

  • [AIEEE 2006]

Cigarette or gas lighter is made up of

The alloy of steel that is used in making automobile parts and utensils