Mock Test 2

  1. What is the correct order of strength of hydrogen bonds?
    1. NH—N < OH—O < FH—F
    2. ClH—Cl > NH—N > OH—O
    3. ClH—Cl < NH—N < OH—O
    4. NH—N > OH—O > FH—F

       

  2. How many d-electrons in copper(I) (atomic number = 29) can have the spin quantum number – ½ ?
    a. 9 b. 5
    c.7 d. 3

     

  3. Which one of the following statements is correct?
    1. H2S is a weaker acid than H2O.
    2. Hydrazine (N2H4) is a stronger base than NH3.
    3. The bond dissociation energy of F2 is less than that of Cl2.
    4. Pure HBr can be prepared by the treatment of NaBr with concentrated HNO3.

       

  4. The difference between atomic radii is maximum in which one of the following pairs.
    a. Rb, Cs b. K, Rb
    c.Na, K d. Li, Na

     

  5. Which one of the following is correct?

    The colour of solution is violet when ...

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