When non-metals react with water then (a) Hydrogen gas is formed (b) Carbon dioxide gas is formed (c) Non-metals do not react with water (d) None of these.
Non-metals do not react with water
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15
Most popular use of German Silver
Tableware
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Composition of Gun metal
Copper, Tin and Zinc
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15
Define Ductility.
It is one of the properties of metals by virtue of which they can be drawn into wires.
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A non metal which is used in batteries.
Graphite.
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banana
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gold
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rocket
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thief
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The most reactive metal is: (a) Iron(b) Gold(c) Zinc(d) Potassium.
POTASSIUM
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15
Composition of Duralumin
Al, Cu, Mg, Mn
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15
What happens when Iron (Fe) reacts with Oxygen and Moisture?
Formation of Rust
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Define Malleability.
The property of metals by which they can be beaten into thin sheets is known as malleability.
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15
Define the term - ALLOY.
An alloy is a solid mixture of two or more metals or a metal and a non-metal.
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15
The metal which can be cut with a knife (a) Sodium and potassium(b) Barium and calcium (c) Sodium and mercury(d) Potassium and calcium.
SODIUM AND POTASSIUM
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heart
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fairy
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gift
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banana
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15
The liquid metal at room temperature (a) Mercury(b) Bromine(c) Sodium(d) Gold.
MERCURY
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15
Generally non-metals are non-lustrous. Name one non-metal which is lustrous.