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Chemistry

Chemistry
Forth floatation process to concentrate the minerals is applicable to

Bauxite
Chalcopyrites
Haematite
Calamine

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Chemistry
PH value between 6.5-7.5 makes the soil

Acidic
Neutral
None of these
Basic

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Chemistry
Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has

High nuclear charge
Smaller atomic radius
Stable half filled 2p sub level
High bond dissociation energy

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Chemistry
Soldering of two metals is possible because of the property of :

Osmosis
Viscosity
Cohesion
Surface tension

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Chemistry
Ruby and sapphire are oxides of

Tin
Aluminium
Iron
Copper

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Chemistry
Which one is the simplest form of alkane

Decane
Propane
Butane
Methane

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MORE MCQ ON Chemistry

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