| Quiz | Identification of common gases, flame tests and flame emission spectroscopy |
|---|---|
| Name | |
| Result | FAILED |
| Score | 18 / 23 (78.3%) |
| Passing score | 18.4 |
| Quiz took | 3 min 12 sec |
| Quiz finished at | 2022-04-17 10:37:00 |
To identify a substance, you can excite its electrons by placing the substance in a flame. This is known as
Which gas bubbles through limewater, turning it cloudy?
Limewater is an aqueous solution of
Which gas relights glowing splint?
Which substance bleaches damp litmus paper, making it go white?
What colour flames do calcium ions produce?
What colour flames do sodium ions produce?
Hydrogen gas
The intensity of the spectrum depends on
Spectroscopes detect different wavelengths of light to produce
Which gas causes a lit splint to produce a squeaky pop?
When looking at half equations, it is important to ensure that
The combination of wavelengths emitted by an ion depends on its charge and
When electrons drop back to their original energy levels, they
What colour flames do potassium ions produce?
A flame test is carried out using a
What colour flames do lithium ions produce?
Before carrying out a flame test, your bunsen burner should have a flame with
Oxygen gas
What colour flames do copper ions produce?
Chlorine
A flame test is carried out using a platinum wire loop dipped in
Which of the following is NOT an advantage of using machines over manual testing?