HSC Science (Computer Science) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions for Chemistry

Elements of group 16 have lower ionization enthalpy values compared to those of group 15 elements. Explain why?

Explain Hoffmann’s exhaustive alkylation with suitable reactions.

How are amines classified depending on the functional group? Give one example of each class of amines.

Write reactions for the preparation of ethanamine using Gabriel phthalimide synthesis.

Why cannot aniline be prepared by Gabriel phthalimide synthesis?

Explain the following reaction with a suitable example.

Hofmann elimination reaction

The optically inactive α-amino acid among the following is _____________

The chemical nature of peptide bond in proteins is ____________

In the process of denaturation, there is NO change in the structure following protein.

Write the structure of Zwitterion of alanine.

The following pair of elements has half-filled d-orbitals.

Write the general electronic configuration of 3d series.

Write the number of chiral carbon atoms present in fructose.

Complete the following reaction.

\[\ce{H2N - CH2 - COOH + H2N - CH2 - CH2 - COOH ->[-H2O] ?}\]

Salt of Sc³⁺ and Ti⁴⁺ are colourless. Explain why?

Manganese in the +2 oxidation state is more stable than +3 oxidation state where as iron is stable at +3 oxidation state than +2 oxidation state. Explain why?

Define peptide bond.

Write types of proteins depending upon molecular shape.

Explain denaturation of proteins.

Write industrial application of enzyme catalysis.