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Chemistry

Chemistry
Methanoic and ethanoic acids can be distinguished by the action of

Tollen's reagent
NaHCO3
SOCl2
NaOH

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Chemistry
Spontaneous change is one in there is:

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

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Chemistry
When quick lime is added to water

No heat change takes place
Heat is absorbed
Temperature decreases
Heat is liberated

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Chemistry
Gelatin is mostly used in making ice–creams in order to

Stabilise the colloid and prevent crystallisation
Prevent making a colloid
Enrich the aroma
Stabilise mixture

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Chemistry
The coordination number of body centered atom in cubic structure is

8
4
10
6

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Chemistry
Galena is a mineral of

Gold
Calcium
Iron
Lead

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MORE MCQ ON Chemistry

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