Question # 1

How many total non -metals exist in solid, liquid or gas at room temperature.

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20

10

30

40

Which element has high electronegativetivity Value.

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Chlorine

Oxygen

Fluorine

Nitrogen

Sodium metal has electrons.

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11

10

12

14

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

Which of the followig is less malleable

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Gold

Silver

Sodium

Iron

Metals possess

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Ionic bond

Metallic bond

Covalent bond

Co ordinate bond

Which halogen acids is unstable at room temperature.

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HI

HBr

HCl

HF

Which compunddo you expet the be coloured.

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KCl

NiCl2

BaCl2

Al Cl2

What % of the elements in the periodic table are meals.

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65%

90%

75%

80%

Non-metal form

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Positive ion

Neurtal atom

Negative ion

None of these

In which element there exists the strongest foreces of attraction beween atoms.

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Mg

Ca

Ba

Sr

Group 17 elements are called

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Alkali Metals

Halogens

Noble gases

Alkaline Earth Metals

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