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Chemistry

Chemistry
Which of the following is chiefly present in LPG (Liquefied Petroleum Gas) ?

Methane
Propane
Ethane
Butane

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Chemistry
Which is the heaviest metal among the following?

Silver
Iron
Gold
Copper

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Chemistry
Baryllium Sulphate is less soluble in water due to

Low inflammable energy
Lonic band
Low Energy of dissociation
High inflammable energy

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Chemistry
In which of the following substances all carbon atoms are quaternary in nature ?

Diamond
Teflon
Graphite
Napthalene

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Chemistry
A colloidal system in which a liquid is dispersed in a liquid is called

Emulsion
Precipitate
Gel
Sol

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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
4.84 x 1017
1.568 x 103
6.023 x 1019

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