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Chemistry Test ...

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  • Question 1
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    The ionization enthalpy of hydrogen atom is 1.312 × 10^6 Jmol^−1. The energy required to excite the electron in the atom from n = 1 to n = 2 is

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  • Question 4
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  • Question 5
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    Two liquids X and Y form an ideal solution. At 300K, vapour pressure of the solution containing 1 mol of X and 3 mol of Y is 550 mm Hg. At the same temperature, if 1 mol of Y is further added to this solution, vapour pressure of the solution increases by 10 mm Hg. Vapour pressure (in mmHg) of X and Y in their pure states will be, respectively :

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  • Question 7
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    In context with the transition elements, which of the following statements is incorrect ?

  • Question 8
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    Phenol, when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid, gives

  • Question 9
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  • Question 10
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    Copper crystallizes in fcc with a unit cell length of 361 pm. What is the radius of copper atom ?

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