New ! Chemistry MCQ Practise Tests



12th Standard English Medium Chemistry Subject p - Block Elements - I Book Back 1 Mark Questions with Solution Part - II

12th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Chemistry

Time : 00:30:00 Hrs
Total Marks : 5

    Part I

    5 x 1 = 5
  1. Which of the following is not sp2 hybridised?

    (a)

    Graphite

    (b)

    graphene

    (c)

    Fullerene

    (d)

    dry ice

  2. Which of the following statements is not correct?

    (a)

    Beryl is a cyclic silicate

    (b)

    Mg2SiO4 is an orthosilicate

    (c)

    SiO44−is the basic structural unit of silicates

    (d)

    Feldspar is not aluminosilicate

  3.   Column-I     Column-II
    A Borazole 1 B(OH)3
    B Boric acid 2 B3N3H6
    C Quartz 3 Na2[B4O5(OH)4]8H2O
    D Borax 4 SiO2
    (a)
    A B C D
    2 1 4 3
    (b)
    A B C D
    1 2 4 3
    (c)
    A B C D
    1 2 4 3
    (d)

    None of these

  4. Thermodynamically the most stable form of carbon is________.

    (a)

    Diamond

    (b)

    graphite

    (c)

    Fullerene

    (d)

    none of these

  5. The stability of +1 oxidation state increases in the sequence ________.

    (a)

    Al < Ga < In < Tl

    (b)

    Tl < In < Ga < Al

    (c)

    In < Tl < Ga < Al

    (d)

    Ga< In < Al < Tl

*****************************************

Reviews & Comments about 12th Standard English Medium Chemistry Subject p - Block Elements - I Book Back 1 Mark Questions with Solution Part - II

Write your Comment