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प्रश्न
Complete the synthesis by giving missing starting material, reagent or product.
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उत्तर
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संबंधित प्रश्न
A and B are two functional isomers of compound C3H6O.On heating with NaOH and I2, isomer B forms yellow precipitate of iodoform whereas isomer A does not form any precipitate. Write the formulae of A and B.
Give a simple chemical test to distinguish between the following pair of compounds :
CH3CH2CHO and CH3CH2COCH3
Give a simple chemical test to distinguish between the following pair of compounds:
Phenol and Benzoic acid
An organic compound contains 69.77% carbon, 11.63% hydrogen and rest oxygen. The molecular mass of the compound is 86. It does not reduce Tollens’ reagent but forms an addition compound with sodium hydrogensulphite and give positive iodoform test. On vigorous oxidation it gives ethanoic and propanoic acid. Write the possible structure of the compound.
Alkenes decolourise bromine water in presence of CCl4 due to formation of ______.
Which of the following compounds gives a positive Tollen's test but negative Fehling's test?
Which sugar does not reduce Fehling's solution?
Solvent used for dewaxing of petroleum products are
Acetone and acetaldehyde are differentiated by
Fehilng's test is positive for
Which of the following tests/reactions is given by aldehydes as well as ketones?
What is the composition of Fehling's reagent?
In Tollen's test for aldehyde, the overall number of electrons(s) transferred to the Tollen's reagent formula \[\ce{[Ag(NH3)2]+}\] per aldehyde group to form silver mirror is ______. (Round off to the nearest integer)
The reagent that can be used to distinguish acetophenone and benzophenone is ______.
You are given four organic compounds “A”, “B” , “C” and “D”. The compounds “A”, “B” and “C” form an orange-red precipitate with 2, 4 DNP reagent. Compounds “A” and “B” reduce Tollen’s reagent while compounds “C” and “D” do not. Both “B” and “C” give a yellow precipitate when heated with iodine in the presence of NaOH. Compound “D” gives brisk effervescence with sodium bicarbonate solution. Identify “A”, “B”, “C” and “D” given the number of carbon atoms in three of these carbon compounds is three while one has two carbon atoms. Give an explanation for our answer.
