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Chemistry

Chemistry
The gas that is used in the manufacture of vanaspati ghee is :

Nitrogen
Hydrogen
Oxygen
Carbon dioxide

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Chemistry
The aprotic solvent is

H2O
NH3
C6H6
HF

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Chemistry
Suspension particles have the size between

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

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Chemistry
The percentage of carbon in cost iron is :

0.01 to 0.25
6 to 8
3 to 5
0.5 to 1.5

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

Sedimentation
Magnetization
Evaporation
Sublimation

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Chemistry
Hard water and soft water can be distinguished by using

Ordinary soap
Detergent
Dilute acid
Liquid soap

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MORE MCQ ON Chemistry

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