Solutions [JEE (Based on NTA Guidelines-IIT Engg.) Mains Chemistry]: Questions 7 - 12 of 121
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Question 7
Appeared in Year: 2016
Question MCQ▾
AIF3 is soluble in HF only in presence of KF. It is due to the formation of
Choices
Choice (4) | Response | |
---|---|---|
a. | K [AlF3H] | |
b. | AlH3 | |
c. | K3 [AlF3H3] | |
d. | K3 [AlF6] |
Question 9
Question MCQ▾
Which of the following property is not belong to colligative properties?
Choices
Choice (4) | Response | |
---|---|---|
a. | Elevation of freezing point | |
b. | Depletion in freezing point | |
c. | Osmotic Pressure | |
d. | Elevation of boiling point |
Question 10
Question MCQ▾
If is the vapor pressure of pure solvent and is the vapor pressure of the solution, according to Raoul tin law
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 11
Question MCQ▾
What is the mole fraction of ethylacohol in a solution of total volume 95ml, prepared by adding 50ml of (density to 50 ml of water?
Choices
Choice (4) | Response | |
---|---|---|
a. | 0.3124 | |
b. | 0.236 | |
c. | 0.8576 | |
d. | 0.362 |
Question 12
Question MCQ▾
Calculate the vapor pressure lowering called by addition of 50 g of sucrose (mol mass 342) to 500 g water if the vapor pressure of pure water at is 23.8 mm Hg?
Choices
Choice (4) | Response | |
---|---|---|
a. | 12.40 mm Hg | |
b. | 1.024 mm Hg | |
c. | 0.124 mm Hg | |
d. | 1.240 mm Hg |