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Chemistry

Chemistry
Number of hydrogen atoms in a Glucose molecule

8
12
14
6

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Chemistry
Aquaregia is a mixture of the following in the ratio 1 : 3 by volume

Conc. HNO3 and conc. H2SO4
Dil. HCl and dil. HNO3
Conc. HNO3 and conc. HCl
Conc. HCl and conc. HNO3

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Chemistry
Which of the following is not a chemical reaction'?

Conversion of water into steam
Digestion of food
Burning of coal
Burning of paper

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Chemistry
Detergents clean surfaces on the principle of

Elasticity
Floatation
Surface tension
Viscosity

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Chemistry
Alcoholic (– OH) group can be identified by :

Tollen's Reagent Test
Ozonolysis Reaction
Esterification Test
FeCl3Test

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

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MORE MCQ ON Chemistry

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