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Chemistry

Chemistry
Select the one which is not a mixture :

Distilled water
Gasoline
LPG
Air

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Chemistry
Helium gas is filled in ballons because

It is a noble gas
Its atomic number is 2
It is lighter than air
It is one of the constitutents of water

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Chemistry
The metals commonly used for electroplating are

Chromium, Copper and Nickel
Gold, Sodium and Potassium
Gold, Sodium and Chromium
Nickel, Lead and Chromium

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Chemistry
Suspension particles have the size between

10–2 – 10–4 cm
10–5 – 10–7cm
10–1 – 10–2 cm
10–8 – 10–10cm

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Chemistry
Iron filings can be separated from a heterogenous mixture using the technique of :

Magnetization
Sublimation
Evaporation
Sedimentation

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Chemistry
Preparation of ‘Dalda or Vanaspati’ ghee from vegetable oil utilizes the following process :

Ozonolysis
Hydrolysis
Oxidation
Hydrogenation

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MORE MCQ ON Chemistry

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