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4. d and f- block elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistry4. d and f- block elements1 Mark
MCQ
German silver is an alloy of
  • ✓
    Copper, zinc and nickel
  • B
    Copper and silver
  • C
    Copper, zinc and tin
  • D
    Copper, zinc and silver
✓

Answer

Correct option: A.
Copper, zinc and nickel
a
(a)$\mathop {Cu}\limits_{60\% } + \mathop {Zn}\limits_{20\% } + \mathop {Ni}\limits_{20\% } $

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