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Why is ionization enthalpy of Nitrogen higher than oxygen

Posted by Anita Choudhary 6 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Utkarsh Singh 6 years, 9 months ago

Because electronic configuration of N is 2p3 which half filled and more stable than that of oxygen (2p4)

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Can give IMPs for session ending exam?

Posted by Mahima Bhatia 6 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

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Uses of carbon in short

Posted by Yakshi Baliyan 6 years, 9 months ago

CBSE > Class 11 > Chemistry

3 answers

Yakshi Baliyan 6 years, 9 months ago

Thnq?

Ankita Rao 6 years, 9 months ago

Acha phir, ye lo. These are the main ones; Graphite: -Electrodes in batteries (due to good conductivity). -Electrodes (due to good conductivity) -Pencil Tips -Lubricant -Dry cells Activated Charcoal: -Absorption of poisonous gases (due to its porous nature) -Uses in ACs' system to control odour. Carbon Black: -Black pigment in printing ink. Coal: -Fuel Diamonds: -Jewellery -Drilling, cutting, polishing and grinding in industry. (Due to it's hard character) Used for the production of various elements in the industry.

Ankita Rao 6 years, 9 months ago

11.7.4. Page 319 of NCERT TB. It's quite short and helpful.

ANSWER

bond angle

Posted by Sachin Tiwari 6 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Ankita Rao 6 years, 9 months ago

The angle between the orbitals containing bonding electron pairs around the central atom in a molecule or complex ion.

ANSWER

structure of 2methylcyclohexanone

Posted by Ashrai Tmg 6 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Golu Kumar 6 years, 9 months ago

2-CH3 C6H6 o

ANSWER

What is hyberdisation

Posted by Sachin Baghel 6 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Sudarshan Sharma 6 years, 9 months ago

In hybridisation two atomic orbital of same energy level fuse to form a hybrid orbital. Number of hybrid orbitals formed is equal to number of atomic orbitals used. These hybrid orbitals align themselves at those angles such that there is minimum repulsion in between them

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Ye Kis year Ka sample Paper hai chemistry ka

Posted by Nohar Lal 6 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

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Convert ethene into propene

Posted by Shruti Hooda 6 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Sudarshan Sharma 6 years, 9 months ago

This was literally tough..... Firstly add hydrogen to Ethene by nickle now it is converted to Ethane. Now do corey house synthesis that is add (CH3)2LiCl this is dimethyl lithium chloride now propane will form now add a halogen let's say chlorine this reaction will proceed though free radical mechanism now you will get propyl chloride now add Alcoholic KOH and get propene

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Different between position and functional isomerism with example

Posted by Raju Singh 6 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Shinu Soni 6 years, 9 months ago

position isomers: Isomers which differ in position of functional group or multiple bond in the same carbon chain are called position isomers. for example: 2 pantanone[CH3-C(=O)-CH2-CH2-CH3] is a positional isomers of 3 pantanone[CH3-CH2-C(=O)-CH2-CH3] . functional isomers: compounda having the same molecular formula but different functional group are called functional isomers. for example: propionaldehyde [CH3-CH2-CH(=O)] and acetone [CH3-C(=O)-CH3]. Both compound have same molecular formula C3H6O but have different functional groups.

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Can we get solutions for last year papers which are given here

Posted by Anju Kardam 6 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Abhinav Sharma 6 years, 9 months ago

Yes

ANSWER

What is spontaneity reaction

Posted by Raj Singh 6 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Sudarshan Sharma 6 years, 9 months ago

See spontaienity refers to how easily that reaction can occur. It is depended on giibs free energy it should be negative and entropy should be positive

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Which one will dissolve faster in 100 ml of water ? Sodium or potassium.

Posted by Shreyas Patel 6 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

Why BeSo4 is water soluble but BaSo4 is not

Posted by Priya Singh 6 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Aman Kumar 6 years, 9 months ago

May be your question is incomplete

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Calculate the number of atom of each type in 5.3 g sodium carbonate

Posted by Toship Chauhan 6 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

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how will you convert benzene into p-bromonitro benzene ?

Posted by Badshah A 6 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

Explain huckle rule ?

Posted by Monal Rawat 6 years, 9 months ago

CBSE > Class 11 > Chemistry

3 answers

Meghna Sharma 6 years, 9 months ago

(4n+2)π electrons

Talib Gazi 6 years, 9 months ago

(4n+2)pie

Talib Gazi 6 years, 9 months ago

The electron present in the form of 4(n+2pie) in a ring is called huckle rule

ANSWER

(0.1x)^2=0.000433×10^-37

Posted by Divyansh Maurya 6 years, 9 months ago

CBSE > Class 11 > Chemistry

2 answers

Sb Junaid 6 years, 9 months ago

Where is x

Divyansh Maurya 6 years, 9 months ago

Find x

ANSWER

Hyperconjucation

Posted by Jatin Gupta 6 years, 9 months ago

CBSE > Class 11 > Chemistry

2 answers

Sahil Chahar 6 years, 9 months ago

It operates on sigma pie bond conjugation

Tarang Patel 6 years, 9 months ago

Granger of sigma bond electron whichake the compounds stable

ANSWER

What is shilding effect

Posted by Mukesh Bamniya 5 years, 8 months ago

CBSE > Class 11 > Chemistry

1 answers

Mukesh Bamniya 6 years, 9 months ago

The no of shell between charge of nucleous rich the outermost shell produce obstracle is called shilding effect

5Thank You

ANSWER

Equilibrium kitne marks ka h?

Posted by Gaytri Rajpurohit 6 years, 9 months ago

CBSE > Class 11 > Chemistry

5 answers

Aman Kumar 6 years, 9 months ago

One marks ka hi toh difference hai....?

Mridhula Sri 6 years, 9 months ago

Equilibrium came for 7 marks in my paper

Aman Kumar 6 years, 9 months ago

I think, ...Trigonometry ,straight lines , conic sections, permutation, A.P and G.P, ...etc...?????

3Thank You

Gaytri Rajpurohit 6 years, 9 months ago

Highest marks ka konsa chapter h?

Aman Kumar 6 years, 9 months ago

6 ......I think

ANSWER

Why bcl5 is unstable

Posted by Raghav Pathak 6 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

how many electron are present in 16g of methane

Posted by Shivam Thakur 6 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Sahil Chahar 6 years, 9 months ago

16g/16*6.22*10<23 =6.22*10<23

ANSWER

Cao Ch3-cooNa+Na.OH-------------> ?

Posted by Rahul Bhogawat 6 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Pragati Gola 6 years, 9 months ago

CH4+Na2CO3

ANSWER

Practicals video of class 11 chemistry session 2018 and 2019

Posted by Shivam Thakur 6 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Shivam Thakur 6 years, 9 months ago

how many electron are present in 16g of methane

ANSWER

How to find hybridisation

Posted by Anita Tyagi 6 years, 9 months ago

CBSE > Class 11 > Chemistry

3 answers

Priyal Bansal 6 years, 9 months ago

No. Of sigma bond + no. Of lone pair

Shivam Srivastav 6 years, 9 months ago

Formula = 1/2 ( NO. Of outer most shell electron + (any negative charge) - (any postive charge )+(No. Of monovalent atom ))

Shubham Jana 6 years, 9 months ago

By counting sigma bond

ANSWER

An element has a body centered cubic structure with a cell edge 288 pm. The density of the element is 7.2g/cubic cm. Calculate the no of atom in 208 gram of the element?

Posted by Shivani Sharma 6 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

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Can anyone explain me in detail the qualitative anlysis of nitrogen : (1) dumas method. (2) kjedahl's method

Posted by Sagar Pandya 6 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

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What is molecular orbital theory.

Posted by Abdul Majid 6 years, 9 months ago

CBSE > Class 11 > Chemistry

2 answers

Abdul Majid 6 years, 9 months ago

Thanks

Yogita Ingle 6 years, 9 months ago

The features of the Molecular orbital theory are provided below.

During the filling of electrons into molecular orbitals, the orbitals with the lowest energy levels are always the first to be filled. This selective filling of lower energy orbitals is commonly referred to as the Aufbau Principle.
In the molecular orbital theory, each of the molecular orbitals formed can only accommodate up to two electrons that have opposite spin. This is also called the Pauli Exclusion Principle.
When two molecular orbitals have the same energy levels, electron pairing can only occur when both of these orbitals have one electron. This rule is often called Hund’s rule.
The molecular orbitals like atomic orbitals are filled in accordance with the Aufbau principle, Pauli’s exclusion principle, and the Hund’s rule.
The energy levels of bonding molecular orbitals are always lower than those of anti-bonding molecular orbitals. This is because the electrons in the orbital are attracted by the nuclei in the case of bonding MOs whereas the nuclei repel each other in the case of the anti-bonding MOs.