Question : Which organic chemical compound is reacted with nitrous acid at 273-278K to prepare benzene diazonium chloride?
Option 1: Hydrazine
Option 2: Toluene
Option 3: Aniline
Option 4: Pyridine
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Correct Answer: Aniline
Solution : The correct option is Aniline.
To prepare benzene diazonium chloride, aniline (C6H5NH2) is typically reacted with nitrous acid (HNO2) at a low temperature of 273-278K. This reaction is known as the diazotization of aniline and is a common method for preparing diazonium salts.
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Question : The chemical name of 'common salt' is
Option 1: Sodium chloride
Option 2: Sodium nitrate
Option 3: Ammonium chloride
Option 4: Calcium chloride
Question : An example of heterocyclic compound is
Option 1: Naphthalene
Option 2: Furan
Option 3: Benzene
Option 4: Anthracene
Question : The first organic compounds synthesised in the laboratory was
Option 1: Urea
Option 2: Uric acid
Option 3: Lactic acid
Option 4: Glucose
Question : Hydrochloric acid is also known as
Option 1: Gallic acid
Option 2: Picric acid
Option 3: Muriatic acid
Option 4: Chloric acid
Question : The main components of liquid bleach are:
Option 1: Sodium Chloride
Option 2: Sodium Hypochlorite
Option 3: Hydrochloric Acid
Option 4: Sodium Thiosulphate
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