| 1 |
Bleach is another useful household chemical, it is often referred to as'' chlorine bleach'', but this is a misnomer, What is the main component of household bleach?
|
Sodium chloride <br>
Sodium hydroxide <br>
Hydrochloric acid <br>
Sodium hypochlorite<br>
|
| 2 |
Which of these is a noble metal
|
Gold <br>
Calcium<br>
Magnesium <br>
Zinc<br>
|
| 3 |
Which metal is extracted form hematite?
|
Copper <br>
Iron <br>
Zinc<br>
Potassium<br>
|
| 4 |
Which of these metals often occurs naturally in the pure state?
|
Aluminum <br>
Lead<br>
Gold<br>
Sodium<br>
|
| 5 |
Which of the these metals is the best conductor of electricity?
|
Copper<br>
Silver<br>
Iron<br>
Gold<br>
|
| 6 |
Which of these metals is magnetic?
|
Copper <br>
Cobalt <br>
Zinc <br>
Aluminum <br>
|
| 7 |
By nature, what types are the oxides of most metals?
|
Acidic <br>
Basic<br>
Neutral<br>
Amphoteric<br>
|
| 8 |
Iron sheets are galvanized by dipping them into what molten metal?
|
Zinc<br>
Copper<br>
Cobalt<br>
Manganese<br>
|
| 9 |
which metal is of, malleable, and ductile, it is a poor conductor of electricity and is very resistant to corrosion, Many ancient articles manufactured form this metal have survived over 2000 years
|
Tin <br>
Bronze <br>
Lead<br>
Brass<br>
|
| 10 |
The metal itself is not toxic, but most of its salt is are it has a melting point of 961,8C, is highly ductile and malleable, and is widely used to make jewellery and ornaments.
|
Brass<br>
Gold<br>
Silver<br>
Platinum<br>
|
.gif)
Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
