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Chemistry

Chemistry
This group of alumino-silicate minerals is widely used in making electrical insulators

Mica
Manganese
Chromite
Bauxite

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Chemistry
Spontaneous change is one in there is:

A lowering of entropy
Increase in free energy
A lowering of free energy
An increase in Internal energy

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Chemistry
The elements with atomic numbers 9, 17, 35, 53, 85 are all

Heavy metals
Halogens
Light metals
Noble gases

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Chemistry
Which one of the following metals does not react with water to produce Hydrogen ?

Sodium
Cadmium
Potassium
Lithium

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Chemistry
The chemical name of ‘Common salt’ is

Calcium chloride
Sodium chloride
Ammonium chloride
Sodium nitrate

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Chemistry
The enzyme that converts glucose to ethyl alcohol is :

Maltase
Invertase
Zymase
Diastase

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MORE MCQ ON Chemistry

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