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JEE 2021 | States of Matter
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Question 1
Element ‘B’ forms ccp structure and ‘A’ occupies half of the octahedral voids, while oxygen atoms occupy all the tetrahedral voids. The structure of bimetallic oxide is :
Question 2
The vapour pressures of pure liquids A and B are 400 and 600 mmHg, respective at 298 K. On mixing the two liquids, the sum of their initial volumes is equal to the volume of the final mixture. The mole fraction of liquid B is 0.5 in the mixture. The vapour pressure of the final solution, the mole fractions of components A and B in vapour phase, respectively are :
Question 3
0.5 molal solution acetic acid (M.W. = 60) in benzene (M.W. = 78) boils at 80.80 °C. The normal boiling point of benzene is 80.10 °C and Δvap H = 30.775 KJ/mol. Which of the following option is correct regarding percent of association of acetic acid in benzene.
Question 4
For a gas obeying the van der waals equation at critical temperature, which of the following is true.
Question 5
Given that the vapor above an aqueous solution contains 15.3 mg water per liter at 25.0 °C, what is the concentration of the solute within the solution in mole percent? Please assume ideal behavior.
Question 6
Bromobenzene whose vapor pressure at 95 °C is 110 mm Hg distills at 95 °C. Water vapor pressure is 633 mm Hg.How many grams of bromobenzene (M.W. 157.02) would steam distills with 30 grams of water?
Question 7
Solution is highly concentrated when solute is in
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Mar 8JEE & BITSAT
