QUESTION | ANSWER |
Which metal is extracted from Bauxite? Tungsten
Aluminum Arsenic
Gold
| Aluminum |
Brass is An Element
A Compound
An Alloy A Mixture
| An Alloy |
Bronze is an alloy of Copper and Zinc
Lead and Copper
Barium, Zinc and Iron
Copper and Tin
| Copper and Tin |
What are metals that can be stretched easily known as? Ductile Metals Malleable Metals
Stretchable Metals
Polymer Metals
| Ductile Metals |
Which of the following metals is often found in pure state? Gold Iron
Magnesium
Aluminum
| Gold |
With which metal does oxygen combine to form rust? Gold
Iron Silver
Platinum
| Iron |
Which metal is extracted from Haematite? Iron Tin
Manganese
Cadmium
| Iron |
Fill in the missing word _______ + Oxygen = Magnesium Oxide Manganese
Metal
Magnesium Carbon
| Magnesium |
What are metals that can be beaten into various shapes called? Ductile Metals
Malleable Metals Polymer Metals
Beatable Metals
| Malleable Metals |
Which of the following metals is liquid at room temperature Sodium
Mercury Tungsten
Cadmium
| Mercury |
Sodium is very reactive and may burn on exposure to air, hence it is kept under Oil Water
Ice
Acids
| Oil |
Rocks rich in metals are known as Metalloids
Ores Allotropes
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
Oxygen Sodium
Lead
| Oxygen |
Metals are obtained from their oxides by Reduction Oxidation
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
Oxygen
Sulphur Nitrogen
| Sulphur |
Often to prevent corrosion, metals are galvanized by covering them with a layer of Copper
Zinc Sodium
Tin
| Zinc |
Metals are usually good conductors of heat and electricity. True False
| True |
Iron is magnetic. True False
| True |