HSC Science (Computer Science) ११ वीं कक्षा - Maharashtra State Board Question Bank Solutions for Chemistry

Write orbital notations for the electron in orbitals with the following quantum numbers.

n = 3, l = 2

Write electronic configurations of \[\ce{Fe, Fe2+, Fe3+}\].

Write condensed orbital notation of electronic configuration of the following element:

Lithium (Z = 3)

Write condensed orbital notation of electronic configuration of the following element:

Carbon (Z = 6)

Write condensed orbital notation of electronic configuration of the following element:

Oxygen (Z = 8)

Write condensed orbital notation of electronic configuration of the following element:

Silicon (Z = 14)

Write condensed orbital notation of electronic configuration of the following element:

Chlorine (Z = 17)

Write condensed orbital notation of electronic configuration of the following element:

Calcium (Z = 20)

Draw shapes of 2s orbitals.

Draw shapes of 2p orbitals.

Explain in brief, the significance of the azimuthal quantum number.

If n = 3, what are the quantum number l and m?

The electronic configuration of oxygen is written as 1s² 2s² \[\ce{2p^2_{{x}}}\] \[\ce{2p^1_{{y}}}\] \[\ce{2p^1_{{z}}}\] and not as 1s² 2s² \[\ce{2p^2_{{x}}}\], \[\ce{2p^2_{{y}}}\] \[\ce{2p^0_{{z}}}\], Explain.

Write a note on ‘Principal Quantum number.

Using the concept of quantum numbers, calculate the maximum numbers of electrons present in the ‘M’ shell. Give their distribution in shells, subshells, and orbitals.

Indicate the number of unpaired electrons in \[\ce{Si}\] (Z = 14).

Indicate the number of unpaired electron in:

Cr (Z = 24)

Choose the correct option.

Colourless components on chromatogram can not be observed by the following:

Give names of two materials used as stationary phase in chromatography.

Define the Stationary phase.