Chemical Test Flashcards
1
Q
Alcohol test
A
Add: PCl5
Observe: misty white fumes (HCl)
2
Q
Alcohol test equation
(Ethanol)
A
C2H5OH + PCl5 -> C2H5Cl + POCl3 +HCl
3
Q
Alkene
A
Decolourises bromine water
4
Q
Alkene test equation
A
C2H4 + Br2 -> C2H4Br2
5
Q
Aldehyde test
A
Add: Benedicts and heat
Observe: blue -> brick red
6
Q
Aldehyde test equation (ethanal)
A
CH3CHO + [o] -> CH3COOH
7
Q
Strontium test
A
Red flame
8
Q
Sodium test
A
Yellow flame
9
Q
Potassium test
A
Lilac
10
Q
Lithium test
A
Red
11
Q
Copper test
A
Blue/green flame
12
Q
Barium test
A
Apple green flame
13
Q
Calcium test
A
Brick red flame
14
Q
NH4+ test
A
Tunes damp red litmus blue (from NH3)
15
Q
Cl- test
A
Dilute nitric acid and silver nitrate
(HNO3 + AgNO3)
White ppt
Soluble in dilute NH3
