| 1 |
The transition temperature of KNO3, is |
13.2°C
95.5°C
128°C
32.02°C
|
| 2 |
Polymorphism is shown by AgNO3. Which one of the following options is true for AgNO3? |
Orthorhombic and rhombohedral
Cubic and orthorhombic
Cubic and tetragonal
Monoclinic and hexagonal
|
| 3 |
Which one is an isomorphic pair? |
NaNO3, CaCO3,
NaF, MgO
K2SO4 ,K2Cr2O7
Zn, Cd
|
| 4 |
The examples of a hexagonal system is |
sugar
graphite(a=b not equal to c) {Alpha =beta. not equal to gamma}
sulphur
diamond
|
| 5 |
In diamond, the carbon atoms are arranged in a |
tetrahedral manner
hexagonal manner
square planar manner
octahedral manner
|
| 6 |
Hardness of diamond is attributed to the |
strength of the ionic bonds in the structure
three-dimensional network of covalent bonds
three-dimensional network of covalent bonds
absence of valence electrons in carbon atoms
|
| 7 |
How many allotropic forms are present in carbon? |
Two
Four
Three
Five
|
| 8 |
Which among the following will show anisotropy? |
Wood
Glass
Paper
BeCl2
|
| 9 |
Crystals can be classified into |
7 crystal systems
4 crystal systems
3 crystal systems
14 crystal systems
|
.gif)
Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
