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Chemistry

Chemistry
Which is a natural colloid ?

Cane-sugar
Blood
Urea
Sodium chloride

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Chemistry
Inert gases are

Not stable
Miscible with water
Chemically very active
Chemically unreactive

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Chemistry
A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed?

From brown to blue-black
From pink to blue-green
From brown to orange-red
From blue to pink

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Chemistry
The metal that is usually extracted from sea water is

Na
Ca
Mg
K

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Chemistry
The fat of a common mussel-secretes a sticky glue that can be used to make heart implants. The unique chemical compound present in the glue is:

Amino phenyl alanine
Dihydroxy phenyl alanine
Hydroxy phenyl alanine
Phenyl alanine

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Chemistry
Smoke is formed due to

Gas dispresed in solid
Solid dispresed in liquid
Solid dispersed in gas
Gas dispersed in gas

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MORE MCQ ON Chemistry

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