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? Malleable Metals
Stretchable Metals
Ductile Metals Polymer Metals
| Ductile Metals |
Which of the following metals is often found in pure state? Iron
Magnesium
Aluminum
Gold
| 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
Magnesium Metal
Carbon
| Magnesium |
What are metals that can be beaten into various shapes called? Ductile Metals
Polymer Metals
Beatable Metals
Malleable 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 Water
Ice
Acids
Oil
| Oil |
Rocks rich in metals are known as Metalloids
Ores Allotropes
Slag
| Ores |
Rust on iron is basically A Chloride
A Nitride
A Sulphide
An Oxide
| An Oxide |
Which of the following does not belong to the group? Iron
Sodium
Oxygen Lead
| Oxygen |
Metals are obtained from their oxides by Oxidation
Electrolytic Separation
Roasting
Reduction
| Reduction |
An alloy is a Compound of three elements
Solid Solution of two or more metals Mixture
Element in impure form
| Solid Solution of two or more metals |
If a metal ore is titled "pyrites" then it most probably has Sulphur Chlorine
Oxygen
Nitrogen
| Sulphur |
Often to prevent corrosion, metals are galvanized by covering them with a layer of Copper
Sodium
Zinc Tin
| Zinc |
Metals are usually good conductors of heat and electricity. True False
| True |
Iron is magnetic. True False
| True |