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QUESTIONS

Chemistry
The monomer of polythene is

None of these
ethylene
ethyl alcohol
vinyl chloride

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Chemistry
The luster of a metal is due to

presence of free electrons
its high polishing
its chemical inertness
its high density

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Chemistry
The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is

6.023 x 1023
6.023 x 1019
1.568 x 103
4.84 x 1017

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Chemistry
The most malleable metal is

gold
iron
silver
platinum

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Chemistry
The oil used in the froth floatation process is

pine oil
kerosene oil
olive oil
coconut oil

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