Self Studies
Self Studies
Self Studies
Self Studies

The p-Block Ele...

TIME LEFT -
  • Question 1
    1 / -0

    Which is not true about borax ?

  • Question 2
    1 / -0

    Directions For Questions

    $$A$$ is a white crystalline solid. Its aqueous solution is alkaline in nature. It is used in water softening. On heating, it swells up to form a puffy mass, $$B$$. Strong heating of $$B$$ gives $$C$$. Heating of $$C$$ with nickel oxide gives a brown bead, $$D$$.

    ...view full instructions

    The aqueous solution of 'A' is alkaline due to

  • Question 3
    1 / -0

    Which one of the following statements is incorrect about the structural properties of $$ BF_{3}$$?

  • Question 4
    1 / -0

    The tendency to show inert pair effect follows the order :

  • Question 5
    1 / -0

    Which of the following is incorrect regarding the structural features of borax?

  • Question 6
    1 / -0

    Order of stability of the ions of Ge, Sn and Pb is:

  • Question 7
    1 / -0

    Consider the following reactions:


    i)$$Cr_{2}O_{3}+2Al\rightarrow Al_{2}O_{3}+2Cr+heat$$
    ii)$$Al_{2}O_{3}+2Cr\rightarrow Cr_{2}O_{3}+2Al+heat$$
    iii)$$2Al+6NaOH\rightarrow 2Na_{3}AlO_{3}+3H_{2}$$

    Out of these, the possible reactions are:

  • Question 8
    1 / -0

    The number of $$-OH$$ units directly bonded to boron atoms in borax is :

  • Question 9
    1 / -0

    Match the ores from List-I with their corresponding formulae from List-II.


    List -I                                                        List -II
    A. Borax                                                   1) $$Al_{2}O_{3}.2H_{2}O$$
    B. Razorite                                               2) $$Ca_{2}B_{6}O_{11}.5H_{2}O$$ 
    C. Bauxite                                                3) $$Na_{2}B_{4}O_{7}.4H_{2}O$$
    D.Colemanite                                           4) $$Na_{2}B_{4}O_{7}.10H_{2}O$$

  • Question 10
    1 / -0

    An alkyl halide reacts with a group 14 element $$Y$$ at 570K with $$Cu$$ as a catalyst and produces a dialkyl chloro compound $$Z$$. The compound $$Z$$ on hydrolysis gives another compound which is a strong water repellent and quite inert chemically. The dioxide of $$Y$$ is acidic in nature. The alkyl halide can also be obtained from methane after monosubstitution. Identify $$Y$$ and $$Z$$.

Submit Test
Self Studies
User
Question Analysis

  • Answered - 0

  • Unanswered - 10

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
Submit Test
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now