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Preparations and Uses of Sodium Carbonate

Which of the ...

Question

Which of the following test will not be given positive by the compound (squaric acid) shown above?

A

B r_{2}

water test

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B

2, 4-DNP test

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C

Neutral

F e C l_{3}

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D

Tollen's test

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Solution

The correct option is D Tollen's test

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Similar questions

Q. The compound given to Ram shown a positive iodoform test and negative Tollen's test While the compound given to Shyam shows a negative iodoform test and positive Tollen's test. Identify the compounds as A for Ram and B for Shyam.

Q. An organic compound

(X)

with molecular formula

C_{9} H_{10} O

gives positive 2,4-DNP and Tollen's tests. It undergoes Cannizzaro reaction and on vigorous oxidation it gives 1,4-benzene dicarboxylic acid. Compound

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Q. An aromatic compound 'A' (Molecular formula

C_{8} H_{8} O

) gives positive

2, 4

-DNP test. It gives a yellow precipitate of compound '

B

' on treatment with iodine and sodium hydroxide solution. Compound '

A

' does not give Tollen's or Fehling's test. On drastic oxidation with potassium permanganate it forms a carboxylic acid '

C

' (Molecular formula

C_{7} H_{6} O_{2}

), which is also formed along with the yellow compound in the above reaction. Identify

A

B

C

and write all the reactions involved.

Final product (R) does not give:

Q. Given are the isomers

C_{8} H_{8} O_{2}

.
Which isomer gives

+

ive Tollen's test, also reacts with

F e C l_{3}

?

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Preparations and Uses of Sodium Carbonate

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