| 1 |
Which highly explo9osive compound is more commonly known as TNT?
|
Trinitrotoluene<br>
Ethylene glycol <br>
Sodium chloride<br>
Acetone<br>
|
| 2 |
Which one of the following is the formula for baking soda
|
Na<sub>2</sub>CO<sub>3</sub>
NaHCO<sub>3</sub>
NaOH
HCI
|
| 3 |
Which gas when combined with hydrogen tends to make thing wet and we would die with out it!
|
Nitrogen<br>
Chlorine<br>
Helium<br>
Oxygen <br>
|
| 4 |
Which gas is used a protective atmosphere for growing silicon and germanium crystals
|
Helium<br>
Krypton <br>
Argon<br>
Oxygen<br>
|
| 5 |
Which his gas is used with helium in making gas lasers, but is no doubt better known for its use in lighting.
|
Neon <br>
Argon <br>
Fluorine<br>
Nitrogen<br>
|
| 6 |
This is the li8gtest of a the gases and readily combines with other elements, often explosively!
|
Hydrogen<br>
Nitrogen<br>
Oxygen<br>
Neon<br>
|
| 7 |
In nature, this gas is only found combined with other elements in its pure state however, it is fatal if inhaled.
|
Argon <br>
Oxygen<br>
Chlorine <br>
Hydrogen<br>
|
| 8 |
Care must be taken when handing the radioactive gas. Long term exposure to even minute quantities, can cause lung cancer
|
Radon <br>
Argon<br>
Chlorine <br>
Xenon<br>
|
| 9 |
The gas is the second most abundant element in the universe, and has the lowest melting point of any element
|
Xenon<br>
Hydrogen<br>
Helium<br>
Oxygen<br>
|
| 10 |
This gas becomes liquid at -196C. It is essential to life, and is a component of all proteins.
|
Air <br>
Oxygen<br>
Nitrogen<br>
Hydrogen<br>
|
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