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A colloidal system involves_______

A state of dissolution
A state of dispersion
A state of suspension
None

Zabeehullah
Chemistry mcqs, Past Papers MCQs

A colliodal solution is kept in dark and is illuminated by a beam of light then brightness appears at the right angle of direction of light. This effect is called_________

Tyndall effect
Brownian effect
Hardy schulze effect
None of these

Zabeehullah
Chemistry mcqs, Past Papers MCQs

A coarse mixture is formed when the sizes of the constituent components are relatively…..

bigger
small
very small
all

Zabeehullah
Chemistry mcqs, Past Papers MCQs

A catalyst is more effective in___________

Finely powdered state
Colloidal state
Rough surface
All of these

Zabeehullah
Chemistry mcqs, Past Papers MCQs

54cm3 of ethyl alcohol was dissolved in 400 cm of water to form 454 cm3 of solution of ethyl alcohol. the Percentage by volume of ethyl alcohol in water is

0.12%
1.45%
11.80%
2.01 %

Zabeehullah
Chemistry mcqs, Past Papers MCQs

35% (W/W. solution of ethylene glycol in water is used as antifreezer in automobiles in radiators as a coolent it lowers the freezing point of water to -6″The mole fraction of ethylene glycol is….

0.927
0.378
0.8648
O.1351

Zabeehullah
Chemistry mcqs, Past Papers MCQs

23 g of ethyl alcohol is dissolved in 54 g of water. The mole fraction of water in solution is…..

0.1429
0.8571
0.1872
0.3128

Zabeehullah
Chemistry mcqs, Past Papers MCQs

23 g of ethyl alcohol is dissolved in 54 g of water. The mole fraction of ethyl alcohol in water is…..

0.143
0.11
0.013
1.12

Zabeehullah
Chemistry mcqs, Past Papers MCQs

16g of gas occupies 6 dm3 at S. T. P. The gas may be______

oxygen
molecules
both a and b
none

Zabeehullah
Chemistry mcqs, Past Papers MCQs

1–phenyl-2-chloropropane on treating with alKOH gives mainly_________

1-phenylpropene
2-phenylpropene
1-phenylpropan-2-ol
1-phenylpropan-1-ol

Zabeehullah
Chemistry mcqs, Past Papers MCQs

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