Test For Positive Ions C3

edexcel

?
What acid is used to clean the wire in a flam test?
Hydrochloric acid
1 of 13
What colour is copper in a flame test?
Green
2 of 13
What colour is sodium in a flame test?
Orange-yellow
3 of 13
What colour is potassium in a flame test?
Lilac
4 of 13
What colour is calium in a flame test?
Brick red
5 of 13
When testing for postivie ions with a coloured precipitate, you add
Sodium hydroxide
6 of 13
What colour precipitate does Calcium form?
white
7 of 13
What colour precipitate does copper form?
light blue
8 of 13
What colour precipitate does Iron(II) form?
dark green
9 of 13
What colour precipitate does Iron(III) form?
dark brown
10 of 13
What colour precipitate does Aluminium form?
white first, but dissolves in excess NAOH to form a colourless solution
11 of 13
What colour precipitate does Ammonium form?
none, but gently warm - test gass with red litmas paper - turns blue
12 of 13
What is the equation for adding sodium hydroxide to Iron (III) ?
Fe3+ + 3OH- --> Fe(OH)3
13 of 13

Other cards in this set

Card 2

Front

What colour is copper in a flame test?

Back

Green

Card 3

Front

What colour is sodium in a flame test?

Back

Preview of the front of card 3

Card 4

Front

What colour is potassium in a flame test?

Back

Preview of the front of card 4

Card 5

Front

What colour is calium in a flame test?

Back

Preview of the front of card 5
View more cards

Comments

Al

Report

 Spelling mistake in: 'What colour is calium in a flame test?'

 'calium'

Instead Of:

'calcium'

Rebecca Stubbs

Report

yes you're spelling aint that great. and the colour of copper in a flame test is bluey green, not just green.

a bit basic you could do more like precipitate reactions for halides, and the reactions for carbonate, sulphates and sulphites.

Jodie Randell

Report

Thanks for feedback, and I'll go through the spellings again

And Its only meant to be for positive Ions so thats why I didn't include tests for halides and carbonates because their negative ions not positive ions, And I put green as thats what colour it is on the mark scheme

Similar Chemistry resources:

See all Chemistry resources »See all Testing and analysing substances resources »