Show with balanced equation, what happens, when the following are mixed :
"Chloral is heated with aqueous hydroxide"

An industrial method of preparation of methanol is

catalytic reduction of carbon monoxide in presence of $ZnO$ - $Cr_{2} O_{3}$
by reacting methane with steam at $90 0^{\circ} C$ with nickel catalyst
by reducing formaldehyde with $LiAlH_{4}$
by reacting formaldehyde with aqueous sodium hydroxide solution

Topic:

Alcohols, Phenols and Ethers

Exam:

JEE Advanced 1984

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Show with balanced chemical reaction what happens when the following are mixed? An aqueous solution of ferric sulphate and potassium iodide.

Topic:

The p-Block Elements

Exam:

JEE Advanced 1984

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Which of the following compounds will give a yellow precipitate with iodine and alkali ?

2-hydroxy propane
Acetophenone
Methyl acetate
Acetamide

Topic:

Aldehydes, Ketones and Carboxylic Acids

Exam:

JEE Advanced 1984

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Write down the reactions involved in the preparation of the following using the reagents indicated against in parenthesis. "Propionic anhydride from propionaldehyde"

Medium

[AgNO_{3}, NH_{4} OH, P_{2} O_{5}]

Topic:

Aldehydes, Ketones and Carboxylic Acids

Exam:

JEE Advanced 1984

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Practice questions from Aldehydes, Ketones and Carboxylic Acids in the same exam

on treatment with excess of methyl magnesium chloride followed by acidification, gives an alcohol

Medium

An ester

A (C_{4} H_{8} O_{2})

B

as the sole organic product. Alcohol

B

, on oxidation with

NaOCl

followed by acidification, gives acetic acid. Deduce structures of

A

and

B

. Show the reactions involved.

Topic:

Aldehydes, Ketones and Carboxylic Acids

Exam:

JEE Advanced 1988

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Fehling’s solution A consists of an aqueous solution of copper sulphate, while Fehling’s solution B consists of an alkaline solution ……

Topic:

Aldehydes, Ketones and Carboxylic Acids

Exam:

JEE Advanced 1990

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The major product in the following reaction is

Topic:

Aldehydes, Ketones and Carboxylic Acids

Exam:

JEE Advanced 2014

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List-I includes starting materials and reagents of selected chemical reactions. List-II gives structures of compounds that may be formed as intermediate products and/or final products from the reactions of List-I.

Which of the following options has correct combination considering List-I and List-II?

Hard

(III), (S), (R)
(IV), (Q), (R)
(III), (T), (U)
$(IV), (Q), (U)$

Topic:

Aldehydes, Ketones and Carboxylic Acids

Exam:

JEE Advanced 2019

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Practice more questions from Aldehydes, Ketones and Carboxylic Acids

The given imine can be prepared from which of the following reactions?

Hard

Topic:

Aldehydes, Ketones and Carboxylic Acids

Book:

Advance Problem in Organic Chemistry (GRB)

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Fehling’s solution A consists of an aqueous solution of copper sulphate, while Fehling’s solution B consists of an alkaline solution ……

Topic:

Aldehydes, Ketones and Carboxylic Acids

Exam:

JEE Advanced 1990

View solution

Hard

Product '

A

' and '

C

' are:

Topic:

Aldehydes, Ketones and Carboxylic Acids

Book:

Advance Problem in Organic Chemistry (GRB)

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Boiling points of carboxylic acid are:

Lower than corresponding alcohols
Higher than corresponding alcohols
Equal to that of corresponding alcohols
None of the above

Topic:

Aldehydes, Ketones and Carboxylic Acids

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Practice questions on similar concepts asked by Filo students

A 20.0-mL sample of a 0.125 M diprotic acid (H2A) solution is titratedwith 0.1019 M KOH. The acid ionization constants for theacid are Ka1 = 5.2 * 10-5 and Ka2 = 3.4 * 10-10. At what addedvolume of base does each equivalence point occur?

Topic:

Chemistry

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Both chair conformation for the given compound has to be drawn. Concept Introduction: When a compound contains a cyclohexane ring in it, then there are three possibilities of conformations. They are chair, boat and twist-boat. Among these three conformations of cyclohexane ring, the most stable one is the chair conformation. In the above structure, there are twelve substituents that can be placed. Among the twelve, six are axial substituents and six are equatorial substituents. The axial substituents can be represented as shown below, The equatorial substituents can be represented as, To draw a group in a correct configuration, we have to understand what is coming towards us and what is going away from us (wedge and dash bonds). For drawing the other chair conformation, a ring flip has to be done. Ring flipping makes the skeleton as shown below, During this ring flip from one chair conformation to another, all the substituents present in axial position goes to equatorial position and vice-versa.

Topic:

Chemistry

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(Q) Radioactive decay ballows the konetecs wi if the holf-ligo period of a pirst order reaclion 2 min - how long it loke A to reach. a)

25%

of its entioe concentrotion. b)

10%

of its

Topic:

Chemical Kinetics

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