CBSE > Class 11 > Chemistry | CBSE Board | Homework Help

Phenoxide ion generated by treating phenol with sodium hydroxide is even more reactive than phenol towards electrophillc aromatic substitution with carbon dioxide, a weak Electrophill. Ortho Hydroxybenzanoic acid is formed as the main reaction product

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How do we know the its a basic medium or acidic mediun while doing balancing ??

Posted by Jaspreet Kaur 5 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Hiral Ahuja 5 years, 1 month ago

it will be written in the question or in the product or reactant side ,H+(acidic medium) or OH- (basic medium) will be written.

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Tetravslance of carbon

Posted by Sumit Srivastav 5 years, 1 month ago

CBSE > Class 11 > Chemistry

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Practical for test of NH4

Posted by Anjana Singh 5 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

B Manju 5 years, 1 month ago

Methene is spherical solide

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Bhavesh Chahar 5 years, 1 month ago

Plz tell answer

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No of atoms avg. Molecular mass amu. Define

Posted by Azhar Reshi 5 years, 1 month ago

CBSE > Class 11 > Chemistry

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Is molar and molecular masses are different if yes then How?

Posted by Vinay Kumar Agrahari 5 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Jagdish 5 years, 1 month ago

Yes they both are different Molar mass is the mass of one molar of an element/a molecule which is expressed is grams whereas molecular mass is the mass of its content which is expressed in 'amu'. For example, carbon's molecular mass is 12 amu but its molar mass is 12 g/mol

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Hybridisation of PCl5

Posted by Jaspreet Kaur 5 years, 1 month ago

CBSE > Class 11 > Chemistry

3 answers

Utkarsh Gupta 5 years, 1 month ago

Hybridization of PCl5 is sp3d because it have 4 sigma bond

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Jaspreet Kaur 5 years, 1 month ago

I want proper solution

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Kaushal Kumar 5354 5 years, 1 month ago

5 plus

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dipole moment of mn2+

Posted by Vansh Bansal 5 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Raunak Chauhan 5 years, 1 month ago

For dipole moment minimum two atom required

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For the R&N 2Nh3 =N2+3H2 , delta U = 456KJ Calculate delta n for the R&N

Posted by Sadhna Jain 5 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Sachidanand Sahu 5 years, 1 month ago

What is a rational number

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S V 5 years, 1 month ago

Delta n is 34

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Can anyone tell me the IUPAC name for this compound ch2-ch2-ch=ch2, please?

Posted by Kaushal Modha 5 years, 1 month ago

CBSE > Class 11 > Chemistry

4 answers

Hiral Ahuja 5 years, 1 month ago

the compound given is CH2-CH2-CH=CH2 so the name is But-1-ene or Butene

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Shreya Saxena 5 years, 1 month ago

Sorry answer is Pent-1-ene

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Shreya Saxena 5 years, 1 month ago

But-2-ene

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Abhishek Gupta 5 years, 1 month ago

This compound is wrong. The right compound is CH3 - CH2-CH=CH2. And it's IUPAC Name is Pent-1-ene

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What us Resonance

Posted by Charan R 5 years, 1 month ago

CBSE > Class 11 > Chemistry

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Why water molecule not linear

Posted by Charan R 5 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Prince Ahuja 5 years, 1 month ago

Because of the presence of lone pair in oxygen atom

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how do you account for the formation of ethane during chlorination of methane?

Posted by Sujal Patel 5 years, 1 month ago

CBSE > Class 11 > Chemistry

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Bind formation

Posted by Abhijit Gaikwad 5 years, 1 month ago

CBSE > Class 11 > Chemistry

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Bind formation

Posted by Abhijit Gaikwad 5 years, 1 month ago

CBSE > Class 11 > Chemistry

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What is electro magnetic spectrum

Posted by Ashrafiya Gul 5 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Charan R 5 years, 1 month ago

The electromagnetic spectrum is the range of frequencies of electromagnetic radiation and their respective wavelengths and photon energies.

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Iso electronic configuration

Posted by K. Emmanuel 5 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Ranger King 5 years, 1 month ago

Species having same no. Of electron are called isoelectronic eg. Na3- ,O2-,Mg2+

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Ranger King 5 years, 1 month ago

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Electron Gain Enthalpy describe

Posted by Brajesh Razzput 5 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

...... ?‍? 5 years, 1 month ago

Amount of energy released when an electron is added to an isolated gaseous neutral atom is called electron gain enthalpy. It is denoted ∆egH . Higher the energy released in the process of taking an Higher the value of electron gain enthalpy of an atom, the more is the tendency to change into anion. Factors Affecting Electron Gain Enthalpy : (i) Effective Nuclear Charge. (ii) Atomic size (iii) Shielding Effect (iv) Half Filled and Fully Filled orbitals.

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Sample paper 2020 .21

Posted by Sandeep Kasaudhan 5 years, 1 month ago

CBSE > Class 11 > Chemistry