Question # 1

The core of the earth is mostly made from ____________

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Nickel

Iron

A % B

Copper

The earth is made up of ___________ % of iron.

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4

5

6

7

Electropositive character depends upon:

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Atomic size

Nuclear charge

Ionization energy

Electron affinity

Hydrogen is a ____________

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Metal

Non metal

Metalloids

Nil

All are noble metals except:

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Silver

Gold

Hydrogen

Platinum

Which one is least reactive non-metal?

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P

C

CI

F

All metals are solid except

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AI

Mg

Na

Hg

Metal can form ions carrying charges:

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Uni-positive

Di-positive

Tri-Positive

All of them

Silver is a ____________ metal.

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Pure

Noble

None

All

Gold can only be dissolved by:

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Acids

Bases

Aqua Regia

Nil

The earth is made up of ____________ % of aluminum.

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6

7

8

9

Non-metals do not reaction with

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Strong bases

Concentrated acids

Dilute acids

Salts

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