Sector 137, Noida, India - 201301.
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GALGOTIAS COLLEGE OF ENGINEERING AND TECHNOLOGY Pursuing
Bachelor of Technology (B.Tech.)
Sector 137, Noida, India - 201301
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Class Location
Online (video chat via skype, google hangout etc)
Student's Home
Tutor's Home
Years of Experience in Class 12 Tuition
1
Board
CBSE
CBSE Subjects taught
Chemistry, Physics, English, Physical Education, Mathematics
Taught in School or College
No
1. Which school boards of Class 12 do you teach for?
CBSE
2. Have you ever taught in any School or College?
No
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.
Answered on 11/10/2019 Learn CBSE/Class 11/Science/Chemistry/The p-Block Elements/NCERT Solutions/Exercise 11
Carbon monoxide is poisonous for humans because it can quickly form a complex with human haemoglobin. The complex built between CO and Hb (CO-Hb) is very stable, even more than the oxyhemoglobin complex (O2-Hb) by almost 300 times. Thus, in this state, haemoglobin does not further bind to oxygen.
Answered on 11/10/2019 Learn CBSE/Class 11/Science/Chemistry/The p-Block Elements/NCERT Solutions/Exercise 11
Answered on 11/10/2019 Learn CBSE/Class 11/Science/Chemistry/The p-Block Elements/NCERT Solutions/Exercise 11
When boric acid is heated, it converts to metabolic acid, which on further heating gives boron trioxide. Answer: On strong heating, first the Boric acid (H3BO3) breaks up into Metaboric acid (HBO2) and Water (H2O). On further heating, the Metaboric acid breaks up into Boric oxide (B2O3) and Water.
Answered on 11/10/2019 Learn CBSE/Class 11/Science/Chemistry/The p-Block Elements/NCERT Solutions/Exercise 11
Boron has three valence electrons so it is supposed to make three bonds in a molecule with hybridisation sp2 as only s and two p orbitals are used in hybridisation because last p orbital is vacant.
But the case of diborane is different. In diborane bonding of B atom with H and other B is different. Is has two three-centre 2-electron bonds, each one consisting of the two boron atoms and a hydrogen atom sharing two electrons.
The molecule has a total of 12 valence electrons, three from each boron atom and one from each hydrogen atom. In this molecule, each of the two boron atoms will be bonded to two hydrogen atoms via covalent bonds. These bonds will use up 8 of the 12 valence electrons.
The other four valence electrons will be shared by the remaining two hydrogen atoms and by the boron atoms, each particle contributing one orbital to the formation of the 3-centre 2-electron bond. Such a relationship is called the banana bond.
Class Location
Online (video chat via skype, google hangout etc)
Student's Home
Tutor's Home
Years of Experience in Class 12 Tuition
1
Board
CBSE
CBSE Subjects taught
Chemistry, Physics, English, Physical Education, Mathematics
Taught in School or College
No
Answered on 11/10/2019 Learn CBSE/Class 11/Science/Chemistry/The p-Block Elements/NCERT Solutions/Exercise 11
Carbon monoxide is poisonous for humans because it can quickly form a complex with human haemoglobin. The complex built between CO and Hb (CO-Hb) is very stable, even more than the oxyhemoglobin complex (O2-Hb) by almost 300 times. Thus, in this state, haemoglobin does not further bind to oxygen.
Answered on 11/10/2019 Learn CBSE/Class 11/Science/Chemistry/The p-Block Elements/NCERT Solutions/Exercise 11
Answered on 11/10/2019 Learn CBSE/Class 11/Science/Chemistry/The p-Block Elements/NCERT Solutions/Exercise 11
When boric acid is heated, it converts to metabolic acid, which on further heating gives boron trioxide. Answer: On strong heating, first the Boric acid (H3BO3) breaks up into Metaboric acid (HBO2) and Water (H2O). On further heating, the Metaboric acid breaks up into Boric oxide (B2O3) and Water.
Answered on 11/10/2019 Learn CBSE/Class 11/Science/Chemistry/The p-Block Elements/NCERT Solutions/Exercise 11
Boron has three valence electrons so it is supposed to make three bonds in a molecule with hybridisation sp2 as only s and two p orbitals are used in hybridisation because last p orbital is vacant.
But the case of diborane is different. In diborane bonding of B atom with H and other B is different. Is has two three-centre 2-electron bonds, each one consisting of the two boron atoms and a hydrogen atom sharing two electrons.
The molecule has a total of 12 valence electrons, three from each boron atom and one from each hydrogen atom. In this molecule, each of the two boron atoms will be bonded to two hydrogen atoms via covalent bonds. These bonds will use up 8 of the 12 valence electrons.
The other four valence electrons will be shared by the remaining two hydrogen atoms and by the boron atoms, each particle contributing one orbital to the formation of the 3-centre 2-electron bond. Such a relationship is called the banana bond.
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