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Chemistry Test ...

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  • Question 1
    4 / -1

    Directions For Questions

    For an exothermic reaction, following two steps are involved.

    Step 1. A + B → I   (slow)

    Step 2. I  → AB   (fast)

    ...view full instructions

    Which of the following graphs correctly represent this reaction ?

  • Question 2
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    In which of the following arrangements, the sequence is not strictly according to the property written against it?

  • Question 3
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    A crystal made up of particles X, Y, and Z. X forms fcc packing. Y occupies all octahedral voids of X and Z occupies all tetrahedral voids of X. It all particles along one body diagonal are removed, then the formula of the crystal would be

  • Question 4
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    In  the formal charge on each oxygen atom and the P – O bond order are respectively

  • Question 5
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    Based on following information determine the value of x and y

    atomic masses of Al,Cl and Ag are respectively 27,35.5,108.

  • Question 6
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    Aqueous ammonia is used as a precipitating reagent for Al3+ ions as Al(OH)3 rather than aqueous NaOH, because

  • Question 7
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    Bakelite is made from phenol and formaldehyde. The initial reaction between them is the example of :

  • Question 8
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    An electron moving with velocity 'v' is found to have a certain value of de-Broglie wavelength. The velocity to be possessed by the neutron to have the same de-Broglie wavelength is

  • Question 9
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    Chlorobenzene on heating with NaOH at 300oC and high pressure followed by reaction with dil. HCl gives

  • Question 10
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    Directions For Questions

    A sample of an ideal gas is expanded from original volume of 1m3 to twice its volume in a reversible process for which p = αV2  (α = 5 atm m- 6)
    Calculate

    (i)  Work done on P - V diagram

    (ii)  Calculate ΔSm ifC Vm = 20J K -1 m -1 , R = 8JK–1 m–1 and ln2 = 0.7

    ...view full instructions

    The values of work done & ΔSm may be

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