| Quiz | Identification of common gases, flame tests and flame emission spectroscopy |
|---|---|
| Name | |
| Result | PASSED |
| Score | 19 / 23 (82.6%) |
| Passing score | 18.4 |
| Quiz took | 10 min 19 sec |
| Quiz finished at | 2021-03-23 03:46:22 |
A flame test is carried out using a platinum wire loop dipped in
Spectroscopes detect different wavelengths of light to produce
Hydrogen gas
A flame test is carried out using a
Which substance bleaches damp litmus paper, making it go white?
What colour flames do potassium ions produce?
Limewater is an aqueous solution of
What colour flames do lithium ions produce?
The intensity of the spectrum depends on
Which gas bubbles through limewater, turning it cloudy?
Oxygen gas
Which gas relights glowing splint?
What colour flames do calcium ions produce?
Which gas causes a lit splint to produce a squeaky pop?
Chlorine
When electrons drop back to their original energy levels, they
The combination of wavelengths emitted by an ion depends on its charge and
To identify a substance, you can excite its electrons by placing the substance in a flame. This is known as
Which of the following is NOT an advantage of using machines over manual testing?
Before carrying out a flame test, your bunsen burner should have a flame with
When looking at half equations, it is important to ensure that
What colour flames do sodium ions produce?
What colour flames do copper ions produce?