Viva Flashcards
Name a test to detect an alcoholic group
Ceric ammonium nitrate test
Mention one reagent used to test alcohol
Lucas reagent
Ceric ammonium nitrate
What happens when ceric ammonium nitrate is added to alcohol
Pink or red colour is obtained
Which organic compound is identified by using ceric ammonium nitrate
Alcohol
What colour is seen when ceric ammonium nitrate is added to alcohol
Pink or red colour
Lucas reagent
A mixture of anhyd. ZnCl2 and conc HCl
Name the reagent used to distinguish between primary, secondary and tertiary alcohol
Lucas reagent test
What happens when a primary alcohol is treated with Lucas reagent
White turbidity appears only on heating
What happens when a secondary alcohol is treated with Lucas reagent
White turbidity appears after five to 10 mins
What happens when a tertiary alcohol is treated with Lucas reagent
White turbidity appears immediately
Which alc immediately forms turbidity with Lucas reagent
Tertiary
Which alcohol forms turbidity with Lucas reagent in 5 mins
Secondary
Which alcohol do not form turbidity when treated with Lucas reagent at room temp
Primary
Which organic compound gives violet colour with neutral ferric chloride solution
Phenol
Which organic compound answers pthalein fusion test
Phenol
Name the product obtained in pthalein fusion test
Phenolapthein
Mention the reagents used in pthalein fusion test
Phenol+pthalic anhydride + conc. h2so4
How do you detect phenol
Natural ferric chloride test
Pthalein fusion test
Which colour is obtained when phenol undergoes pthalic fusion test
Pale pink colour
What is 2,4-DNP reagent test used
To detect carbonyl group (aldehyde or ketone)