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  4. When KNO3 crystals are dissolved in water at constant temperature

Q. When crystals are dissolved in water at constant temperature

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Solution:

It is the endothermic reaction followed by the increase in the entropy.

Questions from KCET 2022

1. Clathatiates or Cage compounds formed by

2. The eleetron affinity. of halugens follow the order

3. Conductivity of a solution is directly proportional to

4. Which of the following is a Lewis acid ?

5. For the reaction , it is found that doubling the concentration of increases rate 4 times and doubling the concentration of B doubles the reaction rate. What is the overall order of the reaction ?

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3. An organic compound contains (by wt.) carbon and remaining percentage of hydrogen. The right option for the empirical formula of this compound is: [Atomic wt. of is is ]

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4. At standard conditions, if the change in the enthalpy for the following reaction is Given that bond energy of and is and , respectively, what is the bond energy (in of ?

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5. The density of 2 M aqueous solution of NaOH is 1.28 g/cm. The molality of the solution is
[Given that molecular mass of NaOH = 40 g mol]

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