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Sulphuric Acid

Name the prod...

Question

Name the product formed when phenol is treated with acidified solution of $N a_{2} C r_{2} O_{7} .$ Give equation.

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Solution

The product formed when phenol is treated with acidified solution of $N a_{2} C r_{2} O_{7}$ is benzoquinone a conjugated diketone. It is an oxidation reaction.

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Q. When a solution of

N a_{2} C r_{2} O_{7}

is treated with amyl alcohol and acidified

H_{2} O_{2}

, the layer of amyl alcohol turns blue. What is the blue colouration?

Q. Give the IUPAC name of the product obtained when Phenol is oxidized by chromic acid.

(N a_{2} C r_{2} O_{7} +

H_{2} S O_{4})

When phenol is treated with bromine water, white precipitate is obtained. Give the structure and the name of the compound formed.

A

' (molecular formula

C_{3} H_{8} O

is treated with acidified potassium dichromate to form a product '

B

' (molecular formula

C_{3} H_{6} O

B

' forms a shining silver mirror on warming with ammoniacal silver nitrate. '

B

' when treated with an aqueous solution of

H_{2} N C O N H N H_{2}

and sodium acetate gives a product '

C

'. Identify the structure of '

C

^{'} A^{'}

(molecular formula

C_{3} H_{8} O

) is treated with acidified potassium dichromate to form a product

^{'} B^{'}

(molecular formula

C_{3} H_{6} O

^{'} B^{'}

forms a shining silver mirror on warming with ammoniacal silver nitrate.

^{'} B^{'}

when treated with an aqueous solution of

N H_{2} C O N H N H_{2}, H C l

and sodium acetate gives a product

^{'} C^{'}

. Identify the structure of

^{'} C^{'}

.

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