Alkenes on treating with $O_{3}$ and then the product on reduction may give

$C O_{2}$ and water

aldehydes

ketones

none of the above

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The correct Answer is:B, C

Answer

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Updated on:21/07/2023

Class 12 CHEMISTRY HYDROCARBONS

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Knowledge Check

Question 1 - Select One
An alkene "A" on reaction with $O_{3}$ and Zn gives propanone and ethanol in equimolar Addition of HCl to alkene "A" gives "B" as the product. The structure of product "B" is:
A $H_{3} C - C H ∣ C l - C H_{3} ∣ C H ∣ C H_{3}$
B $C l - C H_{2} - C H_{2} - C H_{3} ∣ C H ∣ C H_{3}$
C
D $H_{3} C - C H_{2} - C H_{3} ∣ C ∣ C l - C H_{3}$
Question 1 - Select One
An alkene A on reaction with $O_{3}$ and $Z n - H_{2} O$ gives propanone and ethanal in equimolar ratio. Addition of HCI to alkene A gives B as the major product. The structure of product B is
A $H_{3} C - C ∣ C l H - C H_{3} ∣ C ∣ C H_{3} H$
B $C l - C H_{2} - C H_{2} - C H_{3} ∣ C ∣ C H_{3} H$
C $H_{3} C - C H_{2} - C H_{2} C l ∣ C H - C H_{3}$
D $H_{3} C - C H_{2} - C H_{3} ∣ C ∣ C l - C H_{3}$
Question 1 - Select One
o-Methoxybromobenzene is treated with sodamide and then with ammonia. The product formed is
Ao-Methoxybromobenzene
BAniline
CMethoxybenzene
Dm-Methoxyaniline
Question 1 - Select One
When $S O_{3}$ is treated with $D_{2} O$ , the products are :
A $D_{2} S O_{4}$
B $D_{2} S O_{3}$
C $D_{2} & H_{2} S O_{4}$
D $D_{2} S O_{5}$
Question 1 - Select One
o-xylene on reductive ozonolysis gives
A $C H O | C H O & C H_{3} - O ∣ ∣ C - C H O$
B $\begin{matrix} C H_{3} - C = O ∣ C H_{3} - C = O \end{matrix} & C H_{3} - O ∣ ∣ C - C H O$
C $\begin{matrix} C H_{3} - C = O ∣ C H_{3} - C = O \end{matrix} & \begin{matrix} C O H ∣ C H O \end{matrix}$
D $\begin{matrix} C H_{3} - C = O ∣ C H_{3} - C = O \end{matrix}, C H_{3} - O ∣ ∣ C - C H O & \begin{matrix} C H O ∣ C H O \end{matrix}$
Question 1 - Select One
If an amide is treated with $P_{2} O_{5}$ the likely product is an
Aacid
Balkyl cyanide
Camine
Dacid anhydride.
Question 1 - Select One
An alkene on ozonolysis gives only one product $(Z)$ . $Z$ on reaction with Fehling solution give red precipitate of $C u_{2} O$ . Alkene will be?
A $P h - C H = C H - P h$
B ${(C H_{3})}_{2} C = C {(C H_{3})}_{2}$
C $C H_{3} - C H = C {(C H_{3})}_{2}$
D $C H_{3} - C H = C H - C H_{3}$
Question 1 - Select One
Alkenes can be oxidized in presence of different reagents to give different products. Alkenes on oxidation in presence of silver at high temperature give cyclic ethers, which also can be synthesized by using per acids. Alkenes on reductive ozonolysis give carbonyl compounds in presence of zinc and peroxide. On reaction with acidic KMnO4, it also produces corresponding carbonyl compound. Alkynes can also be oxidized in presence of such reagents but the products are different.
Cyclohexene is allowed to react with ozone and subsequently with $H_{2} O_{2}$ and water. The product formed is
Aoxalic acid
Bmalonic acid
Csuccinic acid
Dadipic acid
Question 1 - Select One
Which of the following give the same product on the reduction with DIBAL-H?
A $C H_{3} - {(C H_{2})}_{9} - C N$ and $C H_{3} {(C H_{2})}_{9} - C O O H$
B $C H_{3} - {(C H_{2})}_{9} - C N$ and $C H_{3} {(C H_{2})}_{9} - C O O C_{2} H_{5}$
C $C H_{3} - {(C H_{2})}_{9} - C O O H$ and $C H_{3} {(C H_{2})}_{9} - C H O$
D $C H_{3} - {(C H_{2})}_{9} - C O O H$ and $C H_{3} {(C H_{2})}_{9} C O O C_{2} H_{5}$

Alkenes on treating with $O_{3}$ and then the product on reduction may give

The correct Answer is:B, C

Related Playlists

Knowledge Check

An alkene "A" on reaction with $O_{3}$ and Zn gives propanone and ethanol in equimolar Addition of HCl to alkene "A" gives "B" as the product. The structure of product "B" is:

An alkene A on reaction with $O_{3}$ and $Z n - H_{2} O$ gives propanone and ethanal in equimolar ratio. Addition of HCI to alkene A gives B as the major product. The structure of product B is

o-Methoxybromobenzene is treated with sodamide and then with ammonia. The product formed is

When $S O_{3}$ is treated with $D_{2} O$ , the products are :

o-xylene on reductive ozonolysis gives

If an amide is treated with $P_{2} O_{5}$ the likely product is an

An alkene on ozonolysis gives only one product $(Z)$ . $Z$ on reaction with Fehling solution give red precipitate of $C u_{2} O$ . Alkene will be?

Which of the following give the same product on the reduction with DIBAL-H?

Similar Questions

FIITJEE-HYDROCARBONS-ASSIGNMENT PROBLEMS (OBJECTIVE) Level-II

Alkenes on treating with O3 and then the product on reduction may give

The correct Answer is:B, C

Related Playlists

Knowledge Check

An alkene "A" on reaction with O3 and Zn gives propanone and ethanol in equimolar Addition of HCl to alkene "A" gives "B" as the product. The structure of product "B" is:

An alkene A on reaction with O3 and Zn−H2O gives propanone and ethanal in equimolar ratio. Addition of HCI to alkene A gives B as the major product. The structure of product B is

o-Methoxybromobenzene is treated with sodamide and then with ammonia. The product formed is

When SO3 is treated with D2O, the products are :

o-xylene on reductive ozonolysis gives

If an amide is treated with P2O5 the likely product is an

An alkene on ozonolysis gives only one product (Z). Z on reaction with Fehling solution give red precipitate of Cu2O. Alkene will be?

Which of the following give the same product on the reduction with DIBAL-H?

Similar Questions

FIITJEE-HYDROCARBONS-ASSIGNMENT PROBLEMS (OBJECTIVE) Level-II

Alkenes on treating with $O_{3}$ and then the product on reduction may give

An alkene "A" on reaction with $O_{3}$ and Zn gives propanone and ethanol in equimolar Addition of HCl to alkene "A" gives "B" as the product. The structure of product "B" is:

An alkene A on reaction with $O_{3}$ and $Z n - H_{2} O$ gives propanone and ethanal in equimolar ratio. Addition of HCI to alkene A gives B as the major product. The structure of product B is

When $S O_{3}$ is treated with $D_{2} O$ , the products are :

If an amide is treated with $P_{2} O_{5}$ the likely product is an

An alkene on ozonolysis gives only one product $(Z)$ . $Z$ on reaction with Fehling solution give red precipitate of $C u_{2} O$ . Alkene will be?