Chemistry for JEE Mains 2017, 2017th Edition

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 ...