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In case of association i (van’t Hoff factor) is given by
i = 1 – (1- 1/n)α, where
n= number of molecules associates = 4 (here),
α = fraction of molecules associates
i = 1 – (1- ¼)α = 1 – ¾ α
if α be 1 (complete association), then
i= 1 – ¾ = ¼

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Oxime definition

Posted by Himanshu Yadav 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Ranga Ramanujam Pcb N S 6 years, 11 months ago

Oxime us a product formed due to reaction of an aldehyde/Ketone with Hydroxyl amine. It has a double bond betn C and N with a OH-Group attached to the same

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How can i prepare for inorganic chemistry

Posted by Atharva Joshi 6 years, 11 months ago

CBSE > Class 12 > Chemistry

3 answers

Riya Singhal 6 years, 11 months ago

Write reactions as much as possible

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Riya Singhal 6 years, 11 months ago

Practice it more and more

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Aditya Bansal 6 years, 11 months ago

You have to just understand it, it's totaly reasoning

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Friends i am very stressed regarding my boards.. I have half than a one month my 6 ch of chemistry are not prepared yet. I want to score about 92 percent in my boards please motivate me ...... will i be able to do it

Posted by Abc Kamboz 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Aditya Bansal 6 years, 11 months ago

Please concentrate on your studies not on these type of ques. Or show off's

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Convert benzene to m-nitroacetophenone. In not more than 2 steps

Posted by Divyansh Srivastava 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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What is Hardy-Shulze law?

Posted by Astha Yadav 6 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Abc Kamboz 6 years, 11 months ago

Acc to hardy shulze rule the coagulating power of an ion is directly proprtional to its charge

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Arihant Pratap Singh 6 years, 11 months ago

It is from the chapter carboxylic acid

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Name the reaction for the determination of OH alcohol group test when freshly prepared cerric ammonium nitrate added to the solution

Posted by Abcd Efgh 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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CH3CONH2 +HNO2 what will be the product

Posted by Mahima Tyagi 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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Why nitric oxide turns brown when released in air

Posted by Mahima Tyagi 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Shubhankar Kumar 6 years, 11 months ago

Fe2+ react with NO and form brown coloured complex. And for more ,see-NCERT(chem.-page175, brown ring test.)

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How change amorphous solid into crystalline solid

Posted by Asif Husain 6 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Sanjay Wankhade 6 years, 11 months ago

Rapid heating and cooling

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Anki Kaushik 6 years, 11 months ago

By Anealing i.e heating during day and colling during night

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Give any two properties of electro chemical series.

Posted by Nivedita Rajsingh 6 years, 11 months ago

CBSE > Class 12 > Chemistry

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All the name reaction of orgranic chemistry

Posted by Riya Baghel 6 years, 11 months ago

CBSE > Class 12 > Chemistry

3 answers

Christin Mathew 6 years, 11 months ago

Ullman process

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Christin Mathew 6 years, 11 months ago

Hunsdickers reaction

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Shrey Shekhar 6 years, 11 months ago

Haloalkanes and haloarenes- finkelstein reaction; swarts reaction; sandmayer reation Alcohols phenols and ether- kolbes reaction; Reimer tiemann reaction; williamson's synthesis Aldehydes ketone and carboxylic acids- resonmund reduction;stephon reaction; etard reaction; gatterman-koch reaction; fridel craft acylation; wilff kishner reduction; tollens test; fehlings test; aldol condensation; cannizzaro reaction; kolbes electrolysis; hell volhard zelinsky Amines- Gabriel phthalimide synthesis; Hoffman bromide degradation; reaction with hinsberg reagent; gattarman reaction;

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Define unit cell and space lattice.

Posted by Astha Yadav 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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Acetylation of salicylic acid?

Posted by Mohammad Ayaan 6 years, 11 months ago

CBSE > Class 12 > Chemistry

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show Resonance structure Phenyl benzyl chloride..

Posted by Ramanjor Yadav 6 years, 11 months ago

CBSE > Class 12 > Chemistry

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What is effect of adding catalyst of activation energy

Posted by Aryan Jaiswal 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Parwez Alam 6 years, 11 months ago

On adding positve catalyst the activation enegry will decrease Which lead to increase in rate of reaction.....

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What is the product formed when urea is treated with sodium hydroxide?

Posted by Priya Shukla 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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Resonance structure of C6H5CH2Cl

Posted by Ramanjor Yadav 6 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Akash Shahi 6 years, 11 months ago

Phenyl benzyl chloride

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Ramanjor Yadav 6 years, 11 months ago

Please give me answer immediately its very urgent..

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Differences between hexagonal close packing and cubic close packing

Posted by Navi Deep 4 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Sia ? 4 years, 6 months ago

The hexagonal close packing is denoted as HCP. This arrangement has two layers of spheres in one repeating unit. The key difference between hexagonal close packing and cubic close packing is that, a unit cell of hexagonal close packing has 6 spheres whereas a unit cell of cubic close packing has 4 spheres.

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Paramagnetic character in 3d transition series elements increase up and then decrease? Why

Posted by Jeeniya Grover 6 years, 11 months ago

CBSE > Class 12 > Chemistry