true

Take Class 12 Tuition from the Best Tutors

• Affordable fees
• 1-1 or Group class
• Flexible Timings
• Verified Tutors

Search in

# Learn Chemistry with Free Lessons & Tips

Post a Lesson

All

All

Lessons

Discussion

Answered on 01 Jan

The electronic configuration of valence shell of Cu is 3d10 4s 1 and not 3d94s2. How is this configuration explained?

Mallela Harish

Lecturer in Chemistry with 6+ years of teaching experience

Hello Kasireddy, The electronic confugaration of Copper (Cu) is but not . This is because of stability of completely filled d sub-shell. The completely filled & hlaf-filled sub-shells are stable. The causes of stability of completely filled & half filled sub-shells are due to following... read more

Hello Kasireddy,

The electronic confugaration of Copper (Cu) is [Ar] $3d^{10}4s^{1}$ but not $3d^{9}4s^{2}$.

This is because of

stability of completely filled d sub-shell.

The completely filled & hlaf-filled sub-shells are stable.

The causes of stability of completely filled & half filled sub-shells are due to following reasons

1) symmetrical distribution of electrons

2) exchange energy

due to above reasons Copper has [Ar] $3d^{10}4s^{1}$ electronic confuguratiion.

Thank you

Dislike Bookmark

Which of the following orbitals are degenerate? 3dxy, 4dxv, 3dyz, 3dz2:, 4dyz., 4dz2:

Mallela Harish

Lecturer in Chemistry with 6+ years of teaching experience

Hello Geeta, The term degenerated indicates containing nearly same enegry. In d-subshell, the 5 orbitals are degeneted. among the the above options , are degenerated. *Hint- d-obritals which are in same shell are degenerated (until they are under the influence of any other ligands) read more

Hello Geeta,

The term degenerated indicates containing nearly same enegry. In d-subshell, the 5 orbitals are degeneted.

among the the above options $3d_{xy}&space;3d_{yz}&space;and&space;3d{_{z}}^{2}$  ,$4d_{xy}&space;4d_{yz}&space;4d_z{2}$ are degenerated.

*Hint- d-obritals which are in same shell are degenerated (until they are under the influence of any other ligands)

Dislike Bookmark

Answered on 01 Jan

Show the distribution of electrons in oxygen atom (atomic number 8) using orbital diagram. "

Mallela Harish

Lecturer in Chemistry with 6+ years of teaching experience

Dislike Bookmark

Take Class 12 Tuition from the Best Tutors

• Affordable fees
• Flexible Timings
• Choose between 1-1 and Group class
• Verified Tutors

Answered on 01 Jan

Orbital angular momentum depends on (a) l (b) n and l (c) n and m (d) m and s"

Mallela Harish

Lecturer in Chemistry with 6+ years of teaching experience

Answer is A Orbital angular momentum depends on the value of azimuthal quantum number. Azimuthal Quantum Number describes the shape of the orbital. It is represented as 'l'. The value of l ranges from 0 to (n-1). For l = 0,1,2,3... the orbitals are s, p, d, f... The orbital angular momentum of... read more

Orbital angular momentum depends on the value of azimuthal quantum number.

Azimuthal Quantum Number describes the shape of the orbital.

It is represented as 'l'.

The value of l ranges from 0 to (n-1). For l = 0,1,2,3... the orbitals are s, p, d, f...

The orbital angular momentum of an electron is given by

l = azimuthal quantum number

h = plank's constant

Thus Orbital angular momentum depends on the value of azimuthal quantum number i.e the value of l.

Thank you.

Dislike Bookmark

Answered on 06 Jan

Discuss the significance/applications of dipole moment.

Syed Ali

Tutor

The value of dipole moment ist used to identify the type of chemical bonding, isomers of benzenes, Cis- trans isomerism and Raman spectrum.
Dislike Bookmark

Answered on 10 Jan

Predict the shapes of the following molecules on the basis of hybridization. BC13, ch4, co2, nh3

Mallela Harish

Lecturer in Chemistry with 6+ years of teaching experience

Hybridization expalains the formation and structure of heteroatomic molecules. According to hybridization theory in B is the central atom which underoes hybridization. B has 3bond pairs with no lone pairs. has trigonal planar geometry. (just like fan) in C is the cental atom. C undergoes... read more

Hybridization expalains the formation and structure of heteroatomic molecules. According to hybridization theory

in $BCl_{3}$

B is the central atom which underoes $sp^{2}$ hybridization. B has 3bond pairs with no lone pairs.

$BCl_{3}$  has trigonal planar geometry. (just like fan)

in $CH_{4}$

C is the cental atom. C undergoes $sp^{3}$ hybdridization. C has 4bond pairs with no lonepairs.

$CH_{4}$ has tetrahedral geometry.

in $CO_{2}$

C is the cetral atom. C undergoes $sp$ hybdidization. C has 2bond pairs withno lone pairs.

$CO_{2}$ has linear geometry.

in $NH_{3}$

N is the central atom. N undergoes $sp^{3&space;}$ hybdidization. N has 3bondpairs with 1lone pair..

$NH_{3}$ has pyramidal geometry.

Dislike Bookmark

Take Class 12 Tuition from the Best Tutors

• Affordable fees
• Flexible Timings
• Choose between 1-1 and Group class
• Verified Tutors

Answered on 01 Jan

All the C – O bonds in carbonate ion (CO2-3) are equal in length. Explain.

Sunita Khanna

Mrs Khanna's Online Chemistry Classes

Because of resonance..
Dislike Bookmark

Answered on 01 Jan

What is an ionic bond? With two suitable examples explain the difference between an ionic and covalent bond?

Sunita Khanna

Mrs Khanna's Online Chemistry Classes

Bond formed by the transfer of electrons is known as ionic bond whereas by rhe sharing of electrons is known as covalent bond... Na = 2,8,1 Cl= 2,8,7 Na donates ite one valence electron to Cl and attains stability while Cl takes and attain stability... Na - e = Na^+ Cl + e = Cl^- and compound... read more

Bond formed by the transfer of electrons is known as ionic bond whereas by rhe sharing of electrons is known as covalent bond...

Na = 2,8,1

Cl= 2,8,7

Na donates ite one valence electron to Cl and attains stability while Cl takes and attain stability...

Na - e = Na^+

Cl + e = Cl^-  and  compound

NaCl is formed...

In Cl2 both the chlorine atoms share one electron each and attain stability through covalent bond...shared electrons are counted for both the participating atoms.

Dislike Bookmark

Answered on 25/12/2021 Learn Chemistry +2

Pranav Kumar

Physical
Dislike Bookmark

Take Class 12 Tuition from the Best Tutors

• Affordable fees
• Flexible Timings
• Choose between 1-1 and Group class
• Verified Tutors

Answered on 29/12/2021 Learn Chemistry +2

Which is the best chemistry branch for Msc in chemistry?

Priyanshu Dhingra

PCB Made Simple By PD

It depends upon your ability and interest. Organic is good if good in biology. Physical if good in maths. Inorganic if you like analysing and find of periodic table and chemical reactions.
Dislike Bookmark

UrbanPro.com helps you to connect with the best Class 12 Tuition in India. Post Your Requirement today and get connected.

Overview

Questions 2.6 k

Lessons 37

Total Shares

193,396 Followers

## Top Contributors

Connect with Expert Tutors & Institutes for Chemistry

## Class 12 Tuition in:

x

Please select a Tag

X

### Looking for Class 12 Tuition Classes?

The best tutors for Class 12 Tuition Classes are on UrbanPro

• Select the best Tutor
• Book & Attend a Free Demo
• Pay and start Learning

### Take Class 12 Tuition with the Best Tutors

The best Tutors for Class 12 Tuition Classes are on UrbanPro

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more