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Chemistry

Chemistry
The coordination number of body centered atom in cubic structure is

6
4
10
8

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Chemistry
Which is the purest commercial form of iron ?

Wrought iron
Pig iron
Stainless steel
Steel

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Chemistry
The inert gas used as beacon light is

He
Kr
Ar
Ne

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Chemistry
Zone refining is used for the purification of

Ag
Cu
Ge
Au

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Chemistry
Normal rainwater has a pH level of

5.6
6.3
3.2
8.3

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Chemistry
Which one is the naturally occuring heaviest element

Protactinium
Mercury
Uranium
Thorium

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