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Solutions Chemistry - Solutions

CBSE - STD 12 Science - Chemistry (CBSE - English Medium). 107 questions in this chapter.

Question types

Solutions question types

107 questions across 6 question groups — pick any mix to generate a Chemistry paper with step-by-step answer keys.

107
Questions
6
Question groups
5
Question types
Sample Questions

Solutions questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q (1 Marks)1 Mark
The compound with maximum value of van't Hoff factor (i) for complete dissociation of solute in aqueous solution is ;
  • A
    KCl
  • B
    NaCl
  • ✓
    $K _2 SO _4$
  • D
    $MgSO _4$

Answer: C.

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Q 3M.C.Q (1 Marks)1 Mark
The boiling point of an atomic mixture of two liquids when it :
  • A
    shows negative deviation from Raout's law
  • B
    forms an ideal solution
  • ✓
    shows positive deviation from Racult's law
  • D
    is saturated

Answer: C.

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Q 5M.C.Q (1 Marks)1 Mark
If a solution of $5 \%$ glucose (molecular weight 180) and a solution of $10 \%$ unknown substance are isosmotic at the same temperature then the molecular weight of unknown substance is:
  • A
    90
  • B
    180
  • ✓
    360
  • D
    45

Answer: C.

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Q 142 Marks Questions2 Marks
1.25 g of protein is present in 300 mL aqueous solution of a protein. The osmotic pressure of this solution at 300 K was found to be $2.50 \times 10^{-3}$ bar. Calculate the molar mass of protein. $[R=0.083 L$ bar $\operatorname{mol}^{-1} K^{-1}$ ].
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Q 173 Marks Question3 Marks
A special thermometer (Beckmann thermometer) is used to determine molecular weight by freezing point depression method instead of ordinary thermometer. Why?
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Q 225 Marks Questions5 Marks
How to determine the vapour pressure and total pressure of the components in binary solution of two volatile liquids? Explain their mathematical form and also explain the graph between mole fraction and vapour pressure for an ideal solution.
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