SOLUTIONS Quiz-13

Solutions Quiz-13

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IIT JEE exam which consists of JEE Main and JEE Advanced is one of the most important entrance exams for engineering aspirants. The exam is held for candidates who are aspiring to pursue a career in the field of engineering and technical studies. Chemistry is important because everything you do is chemistry! Even your body is made of chemicals. Chemical reactions occur when you breathe, eat, or just sit there reading. All matter is made of chemicals, so the importance of chemistry is that it's the study of everything..

This section contain(s) 10 questions numbered 1 to 10. Each question contains STATEMENT 1(Assertion) and STATEMENT 2(Reason). Each question has the 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct..

Q1. Statement 1: Camphor is used as a solvent in the determination of the molecular mass of naphthalene and anthracene
Statement 2: Camphor has high molal elevation constant

•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True

Solution

Q2.Statement 1: Addition of HgI_2 to aqueous solution of KI shows an increase in vapour pressure.
Statement 2: The number of particles present in solution decreases due to formation of complex K₂ HgI₄.

•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True

Q3.  Statement 1: The boiling point of 0.1 M urea solution is less than that of 0.1 M KCl solution.
Statement 2: Elevation of boiling point is directly proportional to the number of species present in the solution.

•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True

Solution

Q4. Statement 1: ∆_mix H and ∆_mix V are zero for an ideal solution
Statement 2: The interactions between the particles of the components of a solution are almost identical as between the particles in liquids

•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True

Solution

Q5.Statement 1: The dissolution of gases in water is always an endothermic process
Statement 2: The dissolution of gases in water proceed with a negative value of ∆S

•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True

Solution

Q6. Statement 1: Osmosis is a bilateral process.
Statement 2: In osmosis net flow from dilute to concentrated solution is noticed..

•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
• Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True

Solution

Q7.Statement 1: For isotonic solutions C₁=C₂
Statement 2: For isotonic solutions π₁= π₂

•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True

Solution

Q8. Statement 1: Vapour pressure of 0.5 M sugar solution is more than 0.5 M KCl solution
Statement 2: Boiling point of a liquid is the temperature at which V.P. of liquid becomes equal to 1 atm.

•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True

Solution

Q9.Statement 1: Addition of a non-volatile causes a depression in vapour pressure.
Statement 2: Vapour pressure of a solution directly proportional to mole fraction of solvent.

•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True

Solution

Q10.Statement 1: 0.1 M solution of glucose has same increment in freezing point than has 0.1 M solution of urea
Statement 2: K_f for both has different value

•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True

Solution

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