Chemistry MCQs

Page No. 69

ppm means________________?


aparts of solute in 1000 parts of solvent

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bparts of solvent in 1000 parts of solute

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cparts of solute in one million parts of solution

✓


dparts of solvent in one million parts of solute

✖



Hydration is a process in which_________________?


aMolecules are surrounded by solvent molecules

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bIons are surrounded by solvent molecules

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cBoth ions and molecules are surrounded by solvent molecules

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dBoth ions and molecules are surrounded by water molecules

✓



Beckmanns apparatus is used to measure_______________?


aboiling point elevation

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bdepression in freezing point

✓


clowering of vapour pressure

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dlowering of osmotic pressure

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The determination of correct molecular weight from Raoults law is applicable to_________________?


aa volatile solute in dilute solution

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ba non-electrolyte & non volatile solute in concentrated solution

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ca non-electrolyte & non volatile solute in concentrated solute

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dnon volatile solute in a dilute solution

✓



Concentration of solute molecule when they are in equilibrium with solid substance at particular temperature is called________________?


asaturated solution

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bsolubility

✓


cunsaturated solution

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dsuper saturated solution

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View Answer solubility

The solution which distils over with change in composition________________?


aideal solution

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bzeotropic solution

✓


cazeotropic solution

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dnon-ideal solution

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View Answer zeotropic solution

If the volume of solution is equal to sum of volumes of its all components then the solution_____________?


awill be an ideal solution

✓


bwill be non-ideal solution

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cwill show deviations from Raoults law

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dboth b and c

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58.5g of of NaCl per 1 dm3 of solution of NaCl in water the concentration of solution will be___________________?


a0.1 M

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b1 m

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c1 M

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d0.1 N

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View Answer 1 M

10ml of alcohol dissolve in 90ml of water unit of concentration used is________________?


a% w/w

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b% w/v

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c% v/v

✓


d% v/w

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View Answer % v/v

The component of solution which is in smaller amount is called_________________?


asolvent

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bsolute

✓


cphase

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dion

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View Answer solute

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