Everyday Science MCQs

5120 MCQs  (Page 308 of 512)

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ppm means________________?
A. Parts of solute in 1000 parts of solvent
B. Parts of solvent in 1000 parts of solute
C. Parts of solute in one million parts of solution
D. Parts of solvent in one million parts of solute
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Water of crystallization can be removed by________________?
A. Drying
B. Heating
C. Evaporation
D. All of the above
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Which one of the following salt does not hydrolyzed________________?
A. Na2so4
B. Alcl3
C. Cuso4
D. Nh4cl
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Which of the following unit of concentration is independent of temperature ?
A. Molarity
B. Molality
C. Mole fraction
D. All
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The molal boiling point constant is the ration of the elevation of boiling point to____________________?
A. Molarity
B. Molality
C. More fraction of solvent
D. Mole fraction of solute
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Which has the minimum freezing point ?
A. One molal naci
B. One molal kci solution
C. One molal caci2
D. One molal urea solution
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Which of the following substance do not show continuous solubility curve ?
A. Kcio4
B. Na2so4. 10h2o
C. K2cr2o7
D. Pbcl2
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Every sample of matter with uniform properties and fixed composition is called_________________?
A. Solute
B. Solvent
C. Solution
D. Phase
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The component of solution which is in smaller amount is called_________________?
A. Solvent
B. Solute
C. Phase
D. Ion
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10ml of alcohol dissolve in 90ml of water unit of concentration used is________________?
A. % w/w
B. % w/v
C. % v/v
D. % v/w
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Word of the Day
25 Jul
January
a preference or special liking for something; a bias in favour of something.
2021:00:00

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