Everyday Science MCQs

5120 MCQs  (Page 307 of 512)

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Molten NaCl conducts electricity due to the presence of_______________?
A. Free electrons
B. Free molecules
C. Free ions
D. Atoms of na and cl
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Electricity in voltaic cell is produced due to_________________?
A. Neutralization
B. Oxidation
C. Reduction
D. Both b & c
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In electrolytic cell electricity carries________________?
A. Spontaneous reaction
B. Non-wpontaneous reaction
C. Neutralization
D. All of above
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5g of of NaCl per 1 dm3 of solution of NaCl in water the concentration of solution will be___________________?
A. 0.1 m
B. 1 m
C. 1 m
D. 0.1 n
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If the volume of solution is equal to sum of volumes of its all components then the solution_____________?
A. Will be an ideal solution
B. Will be non-ideal solution
C. Will show deviations from raoults law
D. Both b & c
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The solution which distils over with change in composition________________?
A. Ideal solution
B. Zeotropic solution
C. Azeotropic solution
D. Non-ideal solution
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Concentration of solute molecule when they are in equilibrium with solid substance at particular temperature is called________________?
A. Saturated solution
B. Solubility
C. Unsaturated solution
D. Super saturated solution
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The determination of correct molecular weight from Raoults law is applicable to_________________?
A. A volatile solute in dilute solution
B. A non-electrolyte & non volatile solute in concentrated solution
C. A non-electrolyte & non volatile solute in concentrated solute
D. Non volatile solute in a dilute solution
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Beckmanns apparatus is used to measure_______________?
A. Boiling point elevation
B. Depression in freezing point
C. Lowering of vapour pressure
D. Lowering of osmotic pressure
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Hydration is a process in which_________________?
A. Molecules are surrounded by solvent molecules
B. Ions are surrounded by solvent molecules
C. Both ions and molecules are surrounded by solvent molecules
D. Both ions and molecules are surrounded by water molecules
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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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