Quiz
Chemistry - tests for cations, anions, water and more
Perguntas do quiz (15)
1What colour flame does Lithium burn with?
- AYellow-orange
- BLilac
- CBrick-red
- DCrimson-red
2You can test for sulphates with Hydrochloric Acid and Silver Nitrate
- AVerdadeiro
- BFalso
3You add Sodium Hydroxide (NaOH) to an unknown solution and a reddish-brown precipitate is formed. What metal ion was in the solution?
- ACopper
- BIron (II)
- CIron (III)
- DCalcium
4To test for Oxygen, you put a glowing splint into a test tube of Oxygen and it relights the splint
- AVerdadeiro
- BFalso
5Ammonia turns damp blue litmus paper blue
- AVerdadeiro
- BFalso
6You have an unknown sample. When you do the flame test, you get a lilac flame and when you add Nitric Acid and Silver Nitrate to it, a cream precipitate is formed. What is the name of the sample?
- APotassium Bromide
- BSodium Iodide
- CCalcium Iodide
- DCalcium Chloride
7You have an unknown sample. When you add Sodium Hydroxide and Ammonia, a blue precipitate is formed and when you add Hydrochloric Acid and Barium Chloride to it, a white precipitate is formed. What is the name of the sample?
- AIron (II) Chloride
- BCopper Sulphate
- CLithium Bromide
- DIron (III) Iodide
8Before doing a flame test, you must dip the loop of platinum wire that you will use in Nitric Acid
- AVerdadeiro
- BFalso
9To test for Hydrogen, you...
- APut a glowing splint in the test tube and hydrogen relights it
- BPut a lit splint in the test tube and the flame goes out
- CPut a lit splint in the test tube and a 'squeaky pop' sound is heard
- DIt turns red litmus paper blue
10Hydrochloric Acid can cause some samples to release a gas, which turns limewater cloudy. What is the anion in the sample?
- AChloride
- BSulphate
- CCarbonate
- DHydroxide
11Cations are negative ions
- AVerdadeiro
- BFalso
12If you add water to Anhydrous Copper (II) Sulphate, what colour do the crystals turn?
- ABlue
- BWhite
- CCream
- DNo colour change can be seen
13A bromide ion forms a yellow precipitate when you add Nitric acid and Silver Nitrate
- AVerdadeiro
- BFalso
14Chlorine bleaches damp litmus paper, turning it white
- AVerdadeiro
- BFalso
15A flame test is conducted to identify an unknown cation. It turns out to be Calcium. What colour was the flame?
- ADark red
- BBrick-red
- CCrimson-red
- DLilac
Informações
- Descrição
- Quiz sobre Chemistry - tests for cations, anions, water and more, criado por Becky Muggeridge em 04-01-2014.
- Autor
- Becky Muggeridge
- Idioma
- English
- Visualizações
- 682
- Avaliação
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