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Rahul Kumar Class 11 Tuition trainer in Delhi/>

Rahul Kumar

Ber Sarai, Delhi, India - 110016.

2 Students

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Rahul Kumar conducts classes in Class 11 Tuition and Class 12 Tuition. Rahul is located in Ber Sarai, Delhi. Rahul takes at students Home. He has 2 years of teaching experience .

Address

Ber Sarai, Delhi, India - 110016

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Teaches

Class 11 Tuition

Class Location

Online (video chat via skype, google hangout etc)

Student's Home

Tutor's Home

Years of Experience in Class 11 Tuition

2

Board

CBSE

CBSE Subjects taught

Chemistry

Taught in School or College

Yes

Class 12 Tuition
2 Students

Class Location

Online (video chat via skype, google hangout etc)

Student's Home

Tutor's Home

Years of Experience in Class 12 Tuition

2

Board

CBSE

CBSE Subjects taught

Chemistry

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 11 Tuition and Class 12 Tuition Classes.

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 2 years.

Contact

Answers by Rahul Kumar (1)

Answered on 11/10/2018 Learn CBSE/Class 11/Science/Chemistry +1 CBSE/Class 11/Science/Chemistry/Classification of Elements and Periodicity in Properties

Assertion (A): Boron has a smaller first ionization enthalpy than beryllium. Reason (R): The penetration... ...more
Assertion (A): Boron has a smaller first ionization enthalpy than beryllium. Reason (R): The penetration of a 2s electron to the nucleus is more than the 2p electron, hence, 2p electron is more shielded by the inner core of electrons that the 2s electrons.
(a) Assertion and reason both are correct statements but reason is not correct explanation of assertion.
(b) Assertion is correct statement but reason is wrong statement.
(c) Assertion and reason both are correct statements and reason is correct explanation of assertion.
(d) Assertion and reason both are wrong statement.

Ans will be (c) reason-in electonic configuration of boron electon we have one electron in 2p orbital which i much more shielded than 2s and removing electron from 2p is easier than 2s.hence IE for Boron will be less.
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Contact

Teaches

Class 11 Tuition

Class Location

Online (video chat via skype, google hangout etc)

Student's Home

Tutor's Home

Years of Experience in Class 11 Tuition

2

Board

CBSE

CBSE Subjects taught

Chemistry

Taught in School or College

Yes

Class 12 Tuition
2 Students

Class Location

Online (video chat via skype, google hangout etc)

Student's Home

Tutor's Home

Years of Experience in Class 12 Tuition

2

Board

CBSE

CBSE Subjects taught

Chemistry

Taught in School or College

Yes

No Reviews yet!

Rahul Kumar conducts classes in Class 11 Tuition and Class 12 Tuition. Rahul is located in Ber Sarai, Delhi. Rahul takes at students Home. He has 2 years of teaching experience .

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