| 1 |
Which of the noble gasses, discovered in 18898 is characterize by its bright orange and green spectral lines ?
|
Krypton<br>
Neon<br>
Helium<br>
Radon<br>
|
| 2 |
Which gas, finally isolated in 1866, in pale yellow in colour , and is both highly toxic and corrosive?
|
Fluorine <br>
Chlorine<br>
Nitrogen<br>
Argon<br>
|
| 3 |
In the entire universe, What is the most abundant element?
|
Hydrogen <br>
Iron<br>
Lead<br>
Oxygen<br>
|
| 4 |
The filament of an eclectic bulb is made of
|
Tungsten<br>
Iron<br>
Nichrome <br>
Carbon<br>
|
| 5 |
Non- stick kitchenware is coated with
|
Glass <br>
Graphite<br>
Teflon<br>
Silicon<br>
|
| 6 |
Which of ht following is used as a food preservative?
|
Sodium benzoate<br>
Sodium perborate<br>
Citric acid <br>
None of the above<br>
|
| 7 |
John Dalton was one of the most important scientists, ever. What was one of his most recognizable contributions to the science of chemistry?
|
A big one<br>
He proposed an extensive model of he atom <br>
He named the science, 'Chemistry'<br>
He invented the mass spectrometer<br>
|
| 8 |
In chemistry you might hear the term kinetic energy. What exactly is kinetic energy
|
The total amount of energy released when an object collides with an immoveable object<br>
The amount of times in a minute an atom vibrates<br>
The energy possessed by matter due to its motion<br>
The amount of times in a second an atom vibrates<br>
|
| 9 |
The are four states of matte, solid, liquid, gas, and plasma.What is plasma?
|
Something found in your blood<br>
A state of matter found in your TV<br>
A very cold state found only at or near absolute zero where atoms lose electrons <br>
An extremely hot gas where atoms are partially broken down to form ions<br>
|
| 10 |
The expensive spice has a beautiful yellow colour and is uses not only in food, but also as a dye
|
Paprika<br>
Saffron<br>
Cloves<br>
Cumin<br>
|
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