Synthesis of Aldehydes or Ketones from Alcohols

Q. when so2 is passed in acidified k2cr2o7 solution oxidation state of sulphur change fro

Q.

Oxidation involves the addition of oxygen to form oxide.

1. True
2. False

Q.
The above reaction is called :

1. MPV reaction
2. Oppanaeur oxidation
3. Tischenko reaction
4. Gattermann reaction

Q.

In which of the following acid, which acid has oxidation reduction and complex formation properties

1. HNO₃

2. H₂SO₄

3. HCl

4. HNO₂

Q.

Benzoyl chloride is prepared from benzoic acid by

1. 

2. 

3. 

4. 

Q. Reagent used for conversion of allyl alcohol to acrolein is:

1. $KMn{O}_4$
2. $H_2{O}_2$
3. $Mn{O}_2$
4. $Os{O}_4$

Q.

Which of the following is true regarding preparation of aldehydes and ketones ?
(i) Both can be prepared by the oxidation of the concerned alcohol with copper at about ${250}^{\circ }C$
(ii) Both can be prepared by the oxidation of the concerned alcohol by oppenauer oxidation.
(iii) Both can be prepared by the oxidation of respective alcohol with acidic dichromate.

1. (i)

2. (ii) and (iii)

3. (i) and (iii)

4. All the three

Q. Formaldehyde is obtained on a commercial scale by the oxidation of

1. Methanol
2. Ethane
3. Acetylene
4. Ether