Which one of the following sets consists of all coinage metals ?
a. Cu Hg Au
B. Cu Ag Au
C. Ag Au Hg
D. Cu Fe Au
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a. Cu Hg Au
B. Cu Ag Au
C. Ag Au Hg
D. Cu Fe Au
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a. Acidic
B. Amphoteric
C. Neutral
D. All of the above
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A. Lanthanides
B. Actinides
C. Rare earth metals
D. All
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A. Valency C. Atomic number
B. Atomic mass D. Valence electrons
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A. Same family
B. Same period
C. p block elements
D. Right upper corner
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A. Boron & Beryllium
B. Nitrogen & Phosphorous
C. Magnesium & Aluminium
D. Gallium & Helium
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A. Acidic
B. Basic
C. Acidic and basic
D. Neutral and acidic
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A. 2
B. 4
C. 8
D. 7
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A. 2
B. 4
C. 6
D. 8
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A. 6th
B. 7th
C. 2nd and 3rd both
D. 5th
Submitted by :- Jamil Ahmed