Question # 1

All are noble metals except:

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Silver

Gold

Hydrogen

Platinum

Which one metal can be cut with a knife?

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Na

Mg

AI

Ca

The earth is made up of ____________ % of aluminum.

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6

7

8

9

The colour of calcium metal flame is

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Golden yellow

Brilliant white

Brick red

Light green

Silver is a ____________ metal.

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Pure

Noble

None

All

Electropositive character depends upon:

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Atomic size

Nuclear charge

Ionization energy

Electron affinity

Metals lose their electrons easily because:

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They are electronegative

They have electron affinity

They are electropositive

Good conductors of heat

Halogens with metals for

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Ionic bond

Covalent bond

Dative covalent bond

Metallic bond

Oxygen is ___________

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Metals

Non-metals

Gas

b & c

Metals from a ____________ part of earth on which we live.

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Smaller

Larger

Medium

Nil

Metal oxides are

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Amphoteric

Basic

Acidic

Neutral

Which one of the following is the lightest metal?

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Calcium

Magnesium

Lithium

Sodium

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