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Recent questions tagged oxygen

What is the correct stereochemical assignment for each of the following alkenes?

asked Jan 18, 2016 by meena.p

1 answer

$HCOOK +CH_3COOK \quad \to$ product obtained is/are :

asked Jan 18, 2016 by meena.p

1 answer

In the below reaction,the reactive intermediate formed is

asked Feb 27, 2014 by sreemathi.v

1 answer

What would be the reagent in the below reaction

asked Feb 27, 2014 by sreemathi.v

1 answer

In the below reaction P is

asked Feb 27, 2014 by sreemathi.v

1 answer

What would be the major product on the following reaction?

asked Feb 27, 2014 by sreemathi.v

1 answer

Which of the following statement is correct?

asked Feb 27, 2014 by sreemathi.v

1 answer

A new carbon-carbon bond formation is possible in

asked Feb 27, 2014 by sreemathi.v

1 answer

What would be the product in the below reaction:

asked Feb 27, 2014 by sreemathi.v

1 answer

What could be the major product in the below reaction

asked Feb 27, 2014 by sreemathi.v

1 answer

Phenol undergoes condensation with acetaldehyde in acidic (or) alkali medium gives

asked Feb 27, 2014 by sreemathi.v

1 answer

Phenol on exposure to air produces

asked Feb 27, 2014 by sreemathi.v

1 answer

In the following compounds

asked Feb 27, 2014 by sreemathi.v

1 answer

The below reaction is known as

asked Feb 27, 2014 by sreemathi.v

1 answer

The fries rearrangement of the below reaction ,the P is

asked Feb 27, 2014 by sreemathi.v

1 answer

Which one of the following reagents is used in the below reaction?

asked Feb 26, 2014 by sreemathi.v

1 answer

The claisen rearrangement of the below reaction the product is

asked Feb 26, 2014 by sreemathi.v

1 answer

What would be the major product in the following reaction?

asked Feb 26, 2014 by sreemathi.v

1 answer

In the following compounds the order of acid strength is

asked Feb 26, 2014 by sreemathi.v

1 answer

Which of the following statement is correct?

asked Feb 26, 2014 by sreemathi.v

1 answer

In the below reaction the products A and B are

asked Feb 26, 2014 by sreemathi.v

1 answer

Phenols can be prepared by

asked Feb 26, 2014 by sreemathi.v

1 answer

In the following reaction :The structure of the major product X is

asked Feb 26, 2014 by sreemathi.v

1 answer

An ester (A) with molecular formula $C_9H_{10}O_2$ was treated with excess of $CH_3MgBr$ and the compound so formed was treated with conc.$H_2SO_4$ to form olefin (B).Ozonolysis of B gave ketone with formula $C_8H_8O$ which shows iodoform test positive.The structure of A is

asked Feb 26, 2014 by sreemathi.v

1 answer

Given: $CH_3COCH_3$ $\large\xrightarrow[\quad pyrolysis \quad]{700^{\large\circ}C}$ $A$ $\large\xrightarrow {CH_3COOH}$ $B$ $\large\xrightarrow {RCOOH} C$ based on these reactions. Write the structures of A and C

asked Feb 26, 2014 by sreemathi.v

1 answer

Refer the below reaction:Compound F gives positive Schiff's test but (E) does not.Give structures of A and F

asked Feb 26, 2014 by sreemathi.v

1 answer

An organic acid ($X$) has molecular formula $C_8H_{16}O_2$ $X$ on heating with $NH_3$ forms $Y$ which on treatment with alkaline $Br_2$ forms $Z$.$Z$ on treatment with $HNO_2$ followed by heating with $H_2SO_4$ gives $2$,$4$-dimethyl-$2$-pentene.What are the structures of $X$ and $Z$?

asked Feb 26, 2014 by sreemathi.v

1 answer

Which of the following carboxylic acid under goes decarboxylation easily?

asked Feb 26, 2014 by sreemathi.v

1 answer

Which of the following statements is correct?

asked Feb 26, 2014 by sreemathi.v

1 answer

The major product obtained on heating $\gamma$-hydroxy acid $CH_3-CH_2-CHOH-CH_2-CH_2-COOH$ is

asked Feb 26, 2014 by sreemathi.v

1 answer

In the below sequence X and Y are

asked Feb 26, 2014 by sreemathi.v

1 answer

Which of the following compound observed in the mechanism of Beckmann rearrangement of the below

asked Feb 26, 2014 by sreemathi.v

1 answer

The correct acid strength order of the compounds

asked Feb 26, 2014 by sreemathi.v

1 answer

The treatment of $LiAlH_4$ with the below one leads to

asked Feb 26, 2014 by sreemathi.v

1 answer

Which carboxylic acid will show HVZ reaction?

asked Feb 25, 2014 by sreemathi.v

1 answer

In the below sequence of reaction X and Y are respectively

asked Feb 25, 2014 by sreemathi.v

1 answer

Propionic acid $\quad \underrightarrow{PCl_3}\quad X\quad\underrightarrow{C_6H_6}\quad Y$.In this sequence Y is

asked Feb 25, 2014 by sreemathi.v

1 answer

The two cleavage reactions are given below :

asked Feb 25, 2014 by sreemathi.v

1 answer

The below reaction with (i) $NH_3,H_2O$,(ii) acid HCl respectively give

asked Feb 25, 2014 by sreemathi.v

1 answer

In the following reaction the structure of the major product X is

asked Feb 25, 2014 by sreemathi.v

1 answer

Which of the following is the major product of the reaction shown below

asked Feb 25, 2014 by sreemathi.v

1 answer

A chiral $C_5H_{10}O$ ether reacts with hot $HI$ to give a $C_5H_{10}I_2$ product.Treatment of this with hot $KOH$ in ethanol produces $1$,$3$-pentadiene.What is the structure of the original ether?

asked Feb 25, 2014 by sreemathi.v

1 answer

Which of the following is expected to have the lowest boiling point?

asked Feb 25, 2014 by sreemathi.v

1 answer

Acid-catalysed reaction of oxirane is given below:

asked Feb 25, 2014 by sreemathi.v

1 answer

In the below reaction product is/are

asked Feb 25, 2014 by sreemathi.v

1 answer

The formation of peroxide linkage in either due to the exposure in air can be detected by treating in with

asked Feb 25, 2014 by sreemathi.v

1 answer

What are the resulting products of the reaction below?

asked Feb 25, 2014 by sreemathi.v

1 answer

What would be the product in the following reaction:

asked Feb 25, 2014 by sreemathi.v

1 answer

Which of the following reaction is the best choice for preparing Ethyl phenyl ether?

asked Feb 25, 2014 by sreemathi.v

1 answer

The following ether,when treated with HBr produces

asked Feb 25, 2014 by sreemathi.v

1 answer

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