Science (English Medium) Class 12 - CBSE Question Bank Solutions for Chemistry

Compare the chemistry of the actinoids with that of lanthanoids with reference to chemical reactivity.

List various types of isomerism possible for coordination compounds, giving an example of each.

Write the free radical mechanism for the polymerisation of ethene.

What is meant by the term ‘broad spectrum antibiotics’? Explain.

Name a substance which can be used as an antiseptic as well as disinfectant.

What are the main constituents of dettol?

What is tincture of iodine? What is its use?

What happens when D-glucose is treated with the following reagent?

HNO₃

Arrange the following:

In decreasing order of the pK_b values:

C₂H₅NH₂, C₆H₅NHCH₃, (C₂H₅)₂NH and C₆H₅NH₂

Arrange the following:

In increasing order of basic strength:

C₆H₅NH₂, C₆H₅N(CH₃)₂, (C₂H₅)₂NH and CH₃NH₂

Arrange the following:

In increasing order of basic strength:

Aniline, p-nitroaniline and p-toluidine

Arrange the following:

In increasing order of basic strength:

C₆H₅NH₂, C₆H₅NHCH₃, C₆H₅CH₂NH₂

Arrange the following:

In decreasing order of basic strength in the gas phase:

C₂H₅NH₂, (C₂H₅)₂NH, (C₂H₅)₃N and NH₃

Write a short note on the following:

Carbylamine reaction

Write the structure of the product of the following reaction:

How will you bring about the following conversion in not more than two steps?

Benzene to m-Nitroacetophenone

How will you bring about the following conversion in not more than two steps?

Benzaldehyde to Benzophenone

Describe the following:

Acetylation

Complete the synthesis by giving missing starting material, reagent or product.