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Dr. Shalini S. Class 12 Tuition trainer in Kullu

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Dr. Shalini S.

Akhara Bazar, Kullu, India - 175101.

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Overview

Experienced educator with a Ph.D. in Chemistry and a successful four-year teaching tenure specializing in Private Online Tutoring. Proficient in delivering comprehensive tutoring services to high school students, encompassing foundational concepts and targeted preparation for competitive exams.

Languages Spoken

Hindi Mother Tongue (Native)

English Proficient

Education

Panjab University 2023

Doctor of Philosophy (Ph.D.)

CSIR-UGC 2015

CSIR -UGC NET

Address

Akhara Bazar, Kullu, India - 175101

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Teaches

Class 12 Tuition

Class Location

Online Classes (Video Call via UrbanPro LIVE)

Student's Home

Tutor's Home

Years of Experience in Class 12 Tuition

1

Board

CBSE

Preferred class strength

One on one/ Private Tutions, Group Classes

CBSE Subjects taught

Chemistry

Experience in School or College

I had an enriching experience in college. I thrived in a stimulating academic environment, forged strong friendships, and actively engaged in extracurricular activities, which helped shape me into a well-rounded individual. The learning journey was both challenging and rewarding, providing a solid foundation for my future endeavors.

Taught in School or College

Yes

Reviews

No Reviews yet!

FAQs

1. Which school boards of Class 12 do you teach for?

CBSE

2. Have you ever taught in any School or College?

Yes

3. Which classes do you teach?

I teach Class 12 Tuition Class.

4. Do you provide a demo class?

Yes, I provide a free demo class.

5. How many years of experience do you have?

I have been teaching for 1 year.

Answers by Dr. Shalini S. (2)

Answered on 21 May Learn CBSE/Class 11/Science/Chemistry

Electrocyclic reactions are a class of pericyclic reactions in organic chemistry where a conjugated polyene undergoes a reversible ring-closure or ring-opening process under the influence of heat or light. These reactions are characterized by the conversion of π-electrons into σ-electrons and... ...more

Electrocyclic reactions are a class of pericyclic reactions in organic chemistry where a conjugated polyene undergoes a reversible ring-closure or ring-opening process under the influence of heat or light. These reactions are characterized by the conversion of π-electrons into σ-electrons and vice versa.

Key features of electrocyclic reactions include:

  1. Concerted Mechanism: The reaction proceeds in a single step without intermediates, involving a cyclic redistribution of electrons.
  2. Conjugated System: The reactants are usually conjugated polyenes, such as dienes or trienes.
  3. Thermal and Photochemical Control: The reaction can be driven by either thermal energy (heat) or photochemical energy (light), leading to different stereochemical outcomes.

The stereochemical outcome of electrocyclic reactions is governed by the Woodward-Hoffmann rules, which are based on the conservation of orbital symmetry:

  • Thermal Reactions: For an electrocyclic reaction to be thermally allowed, the process must conserve the symmetry of the highest occupied molecular orbital (HOMO). In thermal ring closures, if the polyene has an even number of π-electrons, it undergoes disrotatory closure; if it has an odd number of π-electrons, it undergoes conrotatory closure.

    • Disrotatory Motion: The terminal groups rotate in opposite directions.
    • Conrotatory Motion: The terminal groups rotate in the same direction.
  • Photochemical Reactions: For photochemical reactions, the excitation of electrons changes the symmetry considerations. Typically, photochemical electrocyclic reactions proceed in the opposite stereochemistry to the thermal ones.

    • Even-numbered π-electrons: Conrotatory
    • Odd-numbered π-electrons: Disrotatory
Answers 80 Comments
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Answered on 21 May Learn CBSE/Class 11/Science/Chemistry

Electrocyclic reactions are a class of pericyclic reactions in organic chemistry where a conjugated polyene undergoes a reversible ring-closure or ring-opening process under the influence of heat or light. These reactions are characterized by the conversion of π-electrons into σ-electrons and... ...more

Electrocyclic reactions are a class of pericyclic reactions in organic chemistry where a conjugated polyene undergoes a reversible ring-closure or ring-opening process under the influence of heat or light. These reactions are characterized by the conversion of π-electrons into σ-electrons and vice versa.

Key features of electrocyclic reactions include:

  1. Concerted Mechanism: The reaction proceeds in a single step without intermediates, involving a cyclic redistribution of electrons.
  2. Conjugated System: The reactants are usually conjugated polyenes, such as dienes or trienes.
  3. Thermal and Photochemical Control: The reaction can be driven by either thermal energy (heat) or photochemical energy (light), leading to different stereochemical outcomes.

The stereochemical outcome of electrocyclic reactions is governed by the Woodward-Hoffmann rules, which are based on the conservation of orbital symmetry:

  • Thermal Reactions: For an electrocyclic reaction to be thermally allowed, the process must conserve the symmetry of the highest occupied molecular orbital (HOMO). In thermal ring closures, if the polyene has an even number of π-electrons, it undergoes disrotatory closure; if it has an odd number of π-electrons, it undergoes conrotatory closure.

    • Disrotatory Motion: The terminal groups rotate in opposite directions.
    • Conrotatory Motion: The terminal groups rotate in the same direction.
  • Photochemical Reactions: For photochemical reactions, the excitation of electrons changes the symmetry considerations. Typically, photochemical electrocyclic reactions proceed in the opposite stereochemistry to the thermal ones.

    • Even-numbered π-electrons: Conrotatory
    • Odd-numbered π-electrons: Disrotatory
Answers 80 Comments
Dislike Bookmark

Teaches

Class 12 Tuition

Class Location

Online Classes (Video Call via UrbanPro LIVE)

Student's Home

Tutor's Home

Years of Experience in Class 12 Tuition

1

Board

CBSE

Preferred class strength

One on one/ Private Tutions, Group Classes

CBSE Subjects taught

Chemistry

Experience in School or College

I had an enriching experience in college. I thrived in a stimulating academic environment, forged strong friendships, and actively engaged in extracurricular activities, which helped shape me into a well-rounded individual. The learning journey was both challenging and rewarding, providing a solid foundation for my future endeavors.

Taught in School or College

Yes

No Reviews yet!

Answers by Dr. Shalini S. (2)

Answered on 21 May Learn CBSE/Class 11/Science/Chemistry

Electrocyclic reactions are a class of pericyclic reactions in organic chemistry where a conjugated polyene undergoes a reversible ring-closure or ring-opening process under the influence of heat or light. These reactions are characterized by the conversion of π-electrons into σ-electrons and... ...more

Electrocyclic reactions are a class of pericyclic reactions in organic chemistry where a conjugated polyene undergoes a reversible ring-closure or ring-opening process under the influence of heat or light. These reactions are characterized by the conversion of π-electrons into σ-electrons and vice versa.

Key features of electrocyclic reactions include:

  1. Concerted Mechanism: The reaction proceeds in a single step without intermediates, involving a cyclic redistribution of electrons.
  2. Conjugated System: The reactants are usually conjugated polyenes, such as dienes or trienes.
  3. Thermal and Photochemical Control: The reaction can be driven by either thermal energy (heat) or photochemical energy (light), leading to different stereochemical outcomes.

The stereochemical outcome of electrocyclic reactions is governed by the Woodward-Hoffmann rules, which are based on the conservation of orbital symmetry:

  • Thermal Reactions: For an electrocyclic reaction to be thermally allowed, the process must conserve the symmetry of the highest occupied molecular orbital (HOMO). In thermal ring closures, if the polyene has an even number of π-electrons, it undergoes disrotatory closure; if it has an odd number of π-electrons, it undergoes conrotatory closure.

    • Disrotatory Motion: The terminal groups rotate in opposite directions.
    • Conrotatory Motion: The terminal groups rotate in the same direction.
  • Photochemical Reactions: For photochemical reactions, the excitation of electrons changes the symmetry considerations. Typically, photochemical electrocyclic reactions proceed in the opposite stereochemistry to the thermal ones.

    • Even-numbered π-electrons: Conrotatory
    • Odd-numbered π-electrons: Disrotatory
Answers 80 Comments
Dislike Bookmark

Answered on 21 May Learn CBSE/Class 11/Science/Chemistry

Electrocyclic reactions are a class of pericyclic reactions in organic chemistry where a conjugated polyene undergoes a reversible ring-closure or ring-opening process under the influence of heat or light. These reactions are characterized by the conversion of π-electrons into σ-electrons and... ...more

Electrocyclic reactions are a class of pericyclic reactions in organic chemistry where a conjugated polyene undergoes a reversible ring-closure or ring-opening process under the influence of heat or light. These reactions are characterized by the conversion of π-electrons into σ-electrons and vice versa.

Key features of electrocyclic reactions include:

  1. Concerted Mechanism: The reaction proceeds in a single step without intermediates, involving a cyclic redistribution of electrons.
  2. Conjugated System: The reactants are usually conjugated polyenes, such as dienes or trienes.
  3. Thermal and Photochemical Control: The reaction can be driven by either thermal energy (heat) or photochemical energy (light), leading to different stereochemical outcomes.

The stereochemical outcome of electrocyclic reactions is governed by the Woodward-Hoffmann rules, which are based on the conservation of orbital symmetry:

  • Thermal Reactions: For an electrocyclic reaction to be thermally allowed, the process must conserve the symmetry of the highest occupied molecular orbital (HOMO). In thermal ring closures, if the polyene has an even number of π-electrons, it undergoes disrotatory closure; if it has an odd number of π-electrons, it undergoes conrotatory closure.

    • Disrotatory Motion: The terminal groups rotate in opposite directions.
    • Conrotatory Motion: The terminal groups rotate in the same direction.
  • Photochemical Reactions: For photochemical reactions, the excitation of electrons changes the symmetry considerations. Typically, photochemical electrocyclic reactions proceed in the opposite stereochemistry to the thermal ones.

    • Even-numbered π-electrons: Conrotatory
    • Odd-numbered π-electrons: Disrotatory
Answers 80 Comments
Dislike Bookmark

Shalini S. conducts classes in Class 12 Tuition. Shalini is located in Akhara Bazar, Kullu. Shalini takes Regular Classes- at her Home and Online Classes- via online medium. She has 1 years of teaching experience . Shalini has completed Doctor of Philosophy (Ph.D.) from Panjab University in 2023. She is well versed in English and Hindi.

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