Gold and Silver are known as _________ metals ?

A. Coinage metals
B. Noble metals
C. Both A & B
D. None of these

Submitted by: Mansoor Ahmed Suhag

Mercury and copper are sometimes included as noble metals. Assortment of noble metals. Silver and gold, which with copper are often called the coinage metals, and platinum, iridium, and palladium comprise the so-called precious metals, which are used in jewelry.

Related Mcqs:

Basic metals can be converted into gold by ?
A. Heating
B. Beating
C. Artificial nuclear radioactivity
D. Chemical reaction
The ratio of pure gold in 18 carat gold is _______________?
A. 0.5
B. 0.9
C. 0.8.5
D. 0.75
Submitted by: WIQAR AHMAD
Which metal known as quick silver ?
A. Mercury
B. Sulphuric acid
C. Chromite
D. Quartz
Submitted by: Mansoor Ahmed Suhag
The property by virtue of which metals can be beaten into thin sheets is known as?
A. Ductility
B. Malleability
C. Conductivity
D. Density
The property by virtue of which metals can be beaten into thin sheets is known as?
A. Ductility
B. Malleability
C. Conductivity
D. Density
Submitted by: Ashfaque Ali Khoso
German Silver is an alloy of___________?
A. Zn + Ni
B. Cu + Zn
C. Cu + Ni
D. Cu + Sn
E. None of these
At what temperature does silver melt?
A. 275 °C
B. 327 °C
C.961.8 °C
D. 100 °C
Submitted by: ABDUL HAYEE
Silver fish is the name of__________?
A. Insect
B. Fish
C. Bird
D. Mammal
Submitted by: shahid
With the rise in temperature, metals conductivity____________?
A. Remains same
B. Increases
C. Decreases
D. None of these
Submitted by: Muhammad Mumtaz Haider
Permanent hardness of water due to sulphate of metals can be destroyed by the use of ________ ?
A. Zeolites
B. Sulphonides
C. Lime
D. Nitrates
Submitted by: Rashid Mehmood