Chemistry Solutions - Online Test
Q1. Which has highest freezing point at 1 atm?
Answer : Option A
Explaination / Solution:
Sugar solution has i=1 so ΔTf minimum so Tf will be maximum.
Q2. Which of the following has highest boiling point?
Answer : Option A
Explaination / Solution:
i=3 so ΔTb will be maximum and hence Tb will be maximum.
Q3. A solution showing a large positive deviation from ideal behaviour has
Answer : Option C
Explaination / Solution:
A solution showing a large positive deviation from ideal behaviour shows lower boiling point than both the components.
Q4. Solution of hydrogen in palladium is an example of
Answer : Option A
Explaination / Solution:
Hydrogen (solute , gas ) and solvent is palladium (solid).
Q5. In which unit, the concentration of solution remains independent of temperature
Answer : Option C
Explaination / Solution:
It is independent of volume hence independent of Temperature.
Q6.
Calculate the molarity of liquid HCl solution whose density is 1.17 g/cm3
.
Answer : Option C
Explaination / Solution:
M= (1.17 x 1000)(36.5)
Q7. 6.3 g oxalic acid is used to make 250 mL aqueous solution .The volume of 0.1N NaOH solution required to neutralize completely 10 mL of this solution is
Answer : Option C
Explaination / Solution:
Q8. The depression in freezing point for 1M urea, 1 M glucose and 1 M NaCl are in the ratio of
Answer : Option C
Explaination / Solution:
NaCl has i=2 while urea and glucose will have i=1
Q9. 35 mL of 0.1 M solution is used to neutralize 25 mL of barium hydroxide. The molarity of Barium hydroxide solution is
Answer : Option A
Explaination / Solution:
Q10. To neutralize completely 40 mL of 0.1M aqueous solution of KOH, the volume of 0.1M aqueous solution of phosphoric acid required is
Answer : Option A
Explaination / Solution:
