The ability of metals to be drawn into thin sheets is known as
Ductility
Malleability
Sonorosity
Conductivity
Food cans are coated with tin and not with zinc because
Zinc is costlier than tin
Zinc has higher melting point than tin
Zinc is more reactive than tin
Zinc is less reactive than tin
Brass is an alloy of
Copper and tin
Copper and zinc
Zinc and lead
Lead and tin
Which is used in machine parts due to its high tensile strength?
Pig iron
Steel
Wrought iron
Hematite
A non-metal kept under water is
phosphorus
sulphur
Sodium
Potassium
In the blast furnace iron oxide is reduced by
Lime stone
Calcium silicate
Carbon monoxide
Carbon dioxide
The metal having the highest density is
Lithium
Iridium
Calcium
Diamond
An alloy is
An element
A compound
A homogeneous mixture
A heterogeneous mixture
The substance added to lower the fusion temperature from 2050oC to 950oC is
alumina
cryolite
Corundum
carborundum
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
