Question # 1

Metals possess

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Ionic bond

Metallic bond

Covalent bond

Co ordinate bond

Which metal exists in liquid form at room temperature.

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Sodium

Potassium

Mercury

None of these

The non -metal which is present in group -15 of periodic table.

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Nitrogen

Iodine

Carbon

Sulphur

Which halogen acids is unstable at room temperature.

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HI

HBr

HCl

HF

Metals are the elements which have

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Electropositive character

Electronegative character

Both a and b

None of the above

The melting and boiling points of non mtals are

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Low

High

Moderate

None of these

Pure Alkali metals can be cut simply by knife but iron cannot beacuse of alkali metals have.

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Weak metallic bonding

Strong metallic bonding

Non metallic bonding

Moderate metallic bonding

Non-Metals are of heat and electricity

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Good conductor

Moderate conductor

Bad Conductor

None of these

The following solutions of a halogen and a sodium halide are mixed together Which solution will turn dark becasue of a reactions.

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Br2 and NaF

Br2 and NaCl

Cl and NaF

Cl2 and NaI

Group 17 elements are called

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Alkali Metals

Halogens

Noble gases

Alkaline Earth Metals

Which compunddo you expet the be coloured.

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KCl

NiCl2

BaCl2

Al Cl2

Metals oxides are .

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Neutral

Acidic in nature

Basic in nature

All of these

The heaviest metal is

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Lead

Iron

Osmium

Platinum

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