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WorksheetsSK025: CHEMICAL TEST OF ORGANIC CHEMISTRY (LEVEL 1)
Total questions: 15
Worksheet time: 30mins
The chemical test to identify carbonyl group (ketone and aldehyde) is _______________
Baeyer's Test
Lucas Test
Brady's Test
Hinsberg's Test
What is the observation, if compound aldehyde react with aqueous ammonium
silver nitrate?
Purple colour of potassium permanganate decolourised and brown precipitate
Light yellow precipitate formed
White precipitate formed
Silver mirror precipitate formed
Suggest the suitable chemical test to distinguish between 2-butene and butane
Bromine Test and Lucas Test
Brady's Test and Tollens' Test
Baeyer's Test and Bromine Test
Nitrous acid Test and Baeyer's Test
Compound X react with bromine solution give white precipitate formed. Predict the structure compound X.
2-butanol
butanal
2-butene
Phenol
Iodoform test give positive result for 2-butanol because the present of methyl carbinol. Predict the observation after reaction?
Light yellow precipitate formed
White precipitate formed
Brick-red precipitate
Reddish-brown of bromine decolourise
Give suitable chemical test to different 2-butanol (secondary alcohol) and 1-butanol (primary alcohol).
Brady's Test
Lucas Test
Hinsberg's Test
Bromine Water
What is the purpose Hinsberg’s Test?
To differentiate aldehyde and ketone
To differentiate alkene and alkane
To differentiate class of amines (1o/2o/3o)
To differentiate class of alcohols (1o/2o/3o)
Phenol and Aniline can be reacted with bromine solution. Give the observation.
Yellow precipitate formed
White precipitate formed
Purple precipitate formed
Orange precipitate formed
All of the chemical test can be give positive result for 2-butanal (aldehyde), EXCEPT?
Brady's Test
Tollens' Test
Fehling's Test
Iodoform Test
Which of the compound of alcohol show immediately cloudy after react with Lucas reagent?
1-butanol (10 alcohol)
2-butanol (20 alcohol)
3-pentanol (20 alcohol)
2-methyl-2-butanol (30 alcohol)
Give the suitable chemical test to distinguish between propanal (aldehyde) and propanone (ketone).
Brady's Test
Baeyer's Test
Nitrous Acid Test
Tollens' Test
Which of the compound of amine, release the gas of nitrogen after react with Nitrous Acid Test?
1o amines (aliphatic)
1o amines (aromatic)
2o amines (aliphatic)
3o amines (aromatic)
Which of the compound can be react with an alkaline potassium permanganate in cold condition?
2-butanone
2-butanol
2-butanoic acid
2-butene
Which of the compound can be react with benzenesulphonyl chloride with excess base, KOH ?
2-methyl-2-butanol
2-methyl-2-pentanone
2-methyl-1-propanamine
2-methyl-2-hexene
Structure A and B give the observation orange or yellow precipitate after react with 2,4-dinitrophenylhydrazine. Predict the structure of A and B.
2-butene and 2-butanol
butanal and 2-butene
2-butanone and 2-butanol
butanal and 2-butanone
