HSC Science (Computer Science) 12th Standard Board Exam - Maharashtra State Board Important Questions

What is the action of the following reagents on ethanoic acid?

1) `LiAlH_4"/"H_3O^+`

2) `PCl_3 , "heat"`

3) `P_2O_5, "heat"`

A compound used as pistachio flavour in ice cream is ___________

Write the structure of Phenylmethanamine.

What are amines?

How will you convert calcium acetate to acetaldehyde?

How will you convert acetone to acetone cyanohydrin?

How will you convert benzoic acid to m-bromobenzoic acid?

Answer the following in one sentence.

Write reaction showing conversion of ethanenitrile into ethanol.

Which of the following is the product of reaction of ethane nitrile with Grignard reagent followed by acid hydrolysis?

What is the action of following reagents on ethanoic acid?

SOCl₂/heat

What is the action of following reagents on ethanoic acid?

sodalime/heat

What is the action of following reagents on ethanoic acid?

P₂O₅/heat

Write reactions for the following conversions.

Benzene to Benzaldehyde

Draw structure of salicylaldehyde.

Write the name of product formed, when acetone is treated with 2, 4-dinitrophenyl hydrazine.

What is the action of sodium hypoiodite on acetone?

Write chemical reactions for the following conversions:

Ethyl bromide to ethyl methyl ether.

How ketones are prepared from nitriles?

The product of following reaction is

\[\ce{CH3 - CH = CH - CH2 - CHO ->[i) LiAlH4][ii) H3O+]}\] ______?

Ozonolysis of 2, 3 dimethyl but-2-ene, followed by decomposition by Zn dust and water gives ______.