The Solid State Test

The Solid State

This is The Solid State Test-04 for CBSE class 12 Chemistry.. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
London forces are present in
  • A
    Polar molecular solids
  • B
    Non polar molecular solids
    Correct
  • C
    Hydrogen bonded molecular solids
  • D
    None of these
2
$F{e_3}{O_4}is$
  • A
    Diamagnetic
  • B
    none of these
  • C
    Ferromagnetic
    Correct
  • D
    Paramagnetic
3
The unit cell of a substance has cations A+ at the corners of the unit cell and the anions B – in the center. The simplest formul of the substance is
  • A
    $AB_2$
  • B
    None of these
  • C
    AB
    Correct
  • D
    $A_2B$
4
The coordination number of AB having rock salt geometry is
  • A
    6
    Correct
  • B
    4
  • C
    2
  • D
    8
5
MgO has the structure of NaCl. The coordination number of the ions in MgO is
  • A
    8
  • B
    6
    Correct
  • C
    4
  • D
    2
6
TiCl has the structure of CsCl. The coordination number of the ions in TiCl is
  • A
    4
  • B
    8
    Correct
  • C
    6
  • D
    2
7
Calculate the number of unit cells present in 1 g of gold which has face centered cubic lattice.
  • A
    Option A
  • B
    Option B
  • C
    Option C
  • D
    Option D
    Correct
8
The radius of $Cs^+$ is 169 pm and $Cl^ –$ is 181 pm. The radius ratio is
  • A
    0.933
    Correct
  • B
    1.07
  • C
    2.03
  • D
    1
9
Total number of voids in 0.5 mole of a compound which forms hexagonal close packed structure is
  • A
    Option A
    Correct
  • B
    Option B
  • C
    Option C
  • D
    Option D
10
Type of stoichiometric defect shown by ZnS is
  • A
    Schottky
  • B
    Interstitial
  • C
    Both (a) and (b).
  • D
    Frenkel
    Correct
11
Type of stoichiometric defect shown by AgBr is
  • A
    Schottky
  • B
    Interstitial
  • C
    Frenkel
  • D
    Both (b) and (c)
    Correct
12
A compound is formed by two elements A and B. The element B forms cubic close packing and atoms of A occupy 1/3rd of tetrahedral voids. The formula of this compound is
  • A
    $AB_2$
  • B
    AB
  • C
    $A_2B_3$
    Correct
  • D
    $A_3B_2$
13
An element forms a cubic unit cell with edge length 405 pm. Molar mass of this element is 2.7X10 – 2 Kg/mol and its density is given as 2.7 X 103 $Kg/m^3$. How many atoms of this elements are present per unit cell.
  • A
    1
  • B
    6
  • C
    2
  • D
    4
    Correct
14
A group of 14 element is converted into n – type semiconductor by dopping it with
  • A
    Group 14 elements
  • B
    group 15 elements
    Correct
  • C
    group 16 elements
  • D
    group 17 elements
15
Which type of substances would make better permanent magnets?
  • A
    Diamagnetic
  • B
    paramagnetic
  • C
    Ferrimagnetic
  • D
    Ferromagnetic
    Correct