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General Principles and processes of Isolation of Elements
medium
The major components in "Gun Metal" are
A
$Cu , Zn$ and $Ni$
B
$Cu , Sn$ and $Zn$
C
$Al , Cu , Mg$ and $Mn$
D
$Cu , Ni$ and $Fe$
(JEE MAIN-2021)
Solution
The major components in "Gun Metal" are
$Cu : 87 \%$
$Zn : 3 \%$
$Sn : 10 \%$
Standard 12
Chemistry
Similar Questions
Match Column $-I$ with Column $-II$
| Column $-I$ | Column $-II$ |
| $(P)$ Nitriding | $(I)$ Process of heating steel to redness and then cooling It very slowly |
| $(Q)$ Annealing | $(II)$ Process of heating steel in presence of $NH_3$ and producing hard coating of Iron Nitride on the surface of steel |
| $(R)$ Tempering | $(III)$ Process of heating steel to redness and then cooling it suddenly by plunging it into water or oil |
| $(S)$ Quenching | $(IV)$ Process of heating quenched steel to a temperature well below redness and then cooling it slowly |
hard
