Question

Answer in brief (Ary 2:-20 - Explain self oxidation - reduction of aldehydes having no alpha – hydrogen atom. Explain the process of saponification with suitable example. :-21 - Explain the mechanism of alkaline hydrolysis of bromomethane with energy profile diagram.​

Answer 1

Answer:

Due to the refraction of light, the water appears higher than its actual level when seen from above. ... The light entering from denser to lighter medium bends towards the normal and this causes the refraction of light and the object appears to be raised.

Explanation:

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Answer 2

1) Answers:

Self oxidation reduction reaction of aldehyde : Aldehydes which have no alpha (α) hydrogen (e.g. formaldehyde, trimethylacetaldehyde, benzaldehyde etc.) undergo base induced disproportionation reaction to form equal amounts of corresponding alcohol and carboxylic acid. This reaction is known as cannizzaro reaction,

Benzaldehyde

2C

6

H

5

CHO+KOH

→

Benzyl alcohol

C

6

H

5

CH

2

OH

+

Potassium benzoate

C

6

H

5

CO

2

K

+

Here, one mole benzaldehyde reduced to benzyl alcohol and one mole benzaldehyde oxidised to potassium salt of benzoic acid.

Explanation:

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