The metal having the highest density is
Lithium
Iridium
Calcium
Diamond
The ability of metals to be drawn into thin sheets is known as
Ductility
Malleability
Sonorosity
Conductivity
The metal which does not react with dilute H2SO4
Mg
Zn
Al
Hg
Which one of the following four metals would be displaced from the solution of its salts by other three metals?
Cu
Fe
An alloy is
An element
A compound
A homogeneous mixture
A heterogeneous mixture
Alloys are homogeneous mixtures of a metal with a metal or non-metal. Which among the following alloys contain non-metal as one of its constituents?
Brass
Gun metal
Amalgam
Steel
Which of the following methods is suitable for preventing an iron frying pan from rusting?
Applying grease
Applying paint
Applying a coating of zinc
All the above
A non-metal which is good conductor of electricity is
diamond
graphite
Gold
Platinum
Silver articles become black on prolonged exposure to air. This is due to the formation of
AgCN
Ag2O
Ag2S
Ag2S and AgCN
Which of the following is not true of metals?
Metals are good conductors of electricity
Metals are malleable and ductile.
Metals form non-polar covalent compounds
Metal will have 1 or 2 or 3 electrons in their valence shell