QUESTION | ANSWER |
Which metal is extracted from Bauxite? Tungsten
Aluminum Arsenic
Gold
| Aluminum |
Brass is An Element
A Compound
A Mixture
An Alloy
| An Alloy |
Bronze is an alloy of Copper and Zinc
Lead and Copper
Copper and Tin Barium, Zinc and Iron
| Copper and Tin |
What are metals that can be stretched easily known as? Malleable Metals
Stretchable Metals
Polymer Metals
Ductile Metals
| Ductile Metals |
Which of the following metals is often found in pure state? Iron
Magnesium
Gold Aluminum
| Gold |
With which metal does oxygen combine to form rust? Iron Gold
Silver
Platinum
| Iron |
Which metal is extracted from Haematite? Iron Tin
Manganese
Cadmium
| Iron |
Fill in the missing word _______ + Oxygen = Magnesium Oxide Magnesium Manganese
Metal
Carbon
| Magnesium |
What are metals that can be beaten into various shapes called? Malleable Metals Ductile Metals
Polymer Metals
Beatable Metals
| Malleable Metals |
Which of the following metals is liquid at room temperature Sodium
Tungsten
Cadmium
Mercury
| Mercury |
Sodium is very reactive and may burn on exposure to air, hence it is kept under Water
Ice
Acids
Oil
| Oil |
Rocks rich in metals are known as Metalloids
Allotropes
Ores Slag
| Ores |
Rust on iron is basically An Oxide A Chloride
A Nitride
A Sulphide
| An Oxide |
Which of the following does not belong to the group? Iron
Sodium
Lead
Oxygen
| Oxygen |
Metals are obtained from their oxides by Oxidation
Reduction Electrolytic Separation
Roasting
| Reduction |
An alloy is a Compound of three elements
Mixture
Solid Solution of two or more metals Element in impure form
| Solid Solution of two or more metals |
If a metal ore is titled "pyrites" then it most probably has Chlorine
Sulphur Oxygen
Nitrogen
| Sulphur |
Often to prevent corrosion, metals are galvanized by covering them with a layer of Copper
Sodium
Tin
Zinc
| Zinc |
Metals are usually good conductors of heat and electricity. True False
| True |
Iron is magnetic. True False
| True |