| 1 |
Chlorine is not used in the preparation of
|
hydrochloric acid <br>
phosgene <br>
belching powder<br>
phosphene<br>
|
| 2 |
Hydrogen is used instead of helium to foll balloons for meteorology because
|
of its low density <br>
it is not very reactive under normal conditional <br>
It is almost insoluble in water<br>
it can be prepared easily <br>
|
| 3 |
Polythene is industrially prepared by the polymerization of
|
Methane<br>
Styrene <br>
Acetylene<br>
Ethylene<br>
|
| 4 |
Which of the following types of clothes is manufactured by using petroleum products?
|
Rayon Silk<br>
Terelyne <br>
Nylon <br>
Cotton<br>
|
| 5 |
A light sensitive compound used in photography is
|
Solve chloride <br>
Silver sulphide <br>
Silver bromide <br>
Silver oxide <br>
|
| 6 |
Why does diamond shine at night?
|
Diamonds are radioactive so there are radiation <br>
On account of high refractive index, the rays of light get internally reflected <br>
Diamonds shine because they have some amount of radium in the<br>
Diamond shine s because it has Structure molecular structure <br>
|
| 7 |
Biogas mainly contains
|
Methane <br>
Ethane <br>
Hydrogen<br>
CO
|
| 8 |
Which of the following is a polymer?
|
Vinyl Chloride<br>
Urea <br>
Starch <br>
Styrene<br>
|
| 9 |
Due to rusting the weight of iron
|
increase <br>
decreases <br>
Remains the same <br>
uncertain<br>
|
| 10 |
The substance used for artificial rain is
|
Silver Bromide <br>
Silver iodide <br>
Ammonium nitrate <br>
All the above<br>
|
.gif)
Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
