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Difference Between osmosis and reverse osmosis Concentration of sol Streneth Vantoff factor

Posted by Rishu Singh 5 years, 3 months ago

1 answers

Osmosis is a special case of diffusion in which the molecules are water and the concentration gradient occurs across a semipermeable membrane. ... Reverse osmosis occurs when the water is moved across the membrane against the concentration gradient, from lower concentration to higher concentration. The van 't Hoff factor is the ratio between the actual concentration of particles produced when the substance is dissolved and the concentration of a substance as calculated from its mass.

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Define Hofmann degradation reaction

Posted by Pushpraj Singh Rajput 5 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Gaurav Seth 5 years, 3 months ago

When amide is treated with Br2 in aqueous or ethanolic solution of NaOH, degradation of amide results in formation of primary amine.
Primary amine formed contains one carbon less than the number of carbon atoms in amide.

∣∣

R−C−NH2+Br2+4NaOH⟶R−NH2+Na2CO3+2NaBr+2H2O

Mechanism:

Base attacks amide deprotonating it and generating anion.
Anion reacts with Br2 forming bromoamide.
Deprotonation of bromoamide occurs forming bromoamide anion which undergoes rearrangement forming isocyanate.
Isocyanate forms carbamic acid by addition of H2O molecules.
Decarboxylation of carbamic acid occurs forming primary amine.

How satisfied are you with the an

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State kohlraush law of independent migration of ions

Posted by Tanya Gupta 5 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Gaurav Seth 5 years, 3 months ago

Kohlrausch law of independent migration of ions: The law states that limiting molar conductivity of an electrolyte can be represented as the sum of the individual contributions of the anion and cation of the electrolyte.

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what is stearic hindrance ???

Posted by Iqbal Singh 5 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Yogita Ingle 5 years, 3 months ago

Steric hindrance is when the large size of groups within a molecule prevents chemical reactions which can take place in related molecules with smaller groups. Steric hindrance is also a reason for protection of some groups from unwanted chemical modifications.

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Vikas Shukla 5 years, 3 months ago

In steric hindrance an atom or ligand surrounding the central atom provides hindrance to other atoms or molecule from attacking the central atom results in compound being inert generally.

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what is stearic effect ?

Posted by Iqbal Singh 5 years, 3 months ago

CBSE > Class 12 > Chemistry

3 answers

Iqbal Singh 5 years, 3 months ago

ok bro ?? I think you r a boy but now I know u r girl but fir bhi mai tumhey bro he bulaoongi ok bro ???

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Iqbal Singh 5 years, 3 months ago

ok Mr. Badmash aur kya ho aap Yeh btado vo likh dia karoongi

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Vikas Shukla 5 years, 3 months ago

Steric effect is interaction between atoms/ions that affect the structure and reactivity of the molecule.

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Iupas name

Posted by Kumkum Gupta 5 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Piyush Parjapati 5 years, 3 months ago

Complete question to likho..

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Iqbal Singh 5 years, 3 months ago

kiska puch rhey ho aap IUPAC NAME

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What is name of O2PtF6

Posted by Deepak . 5 years, 3 months ago

CBSE > Class 12 > Chemistry

3 answers

Tanisha Yadav 5 years, 3 months ago

Dioxygenylhexafluoroplatinate

2Thank You

Vikas Shukla 5 years, 3 months ago

Dioxygenylhexafluoroplatinate

2Thank You

Mayank Chouhan 5 years, 3 months ago

Plato-fluorate

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Adehyed reaction of 3 methyl pentanal

Posted by Shivprasad Jadhav 5 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

3methyl pentanal

Posted by Shivprasad Jadhav 5 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Ayush Arya 5 years, 3 months ago

CH3-CH2-CH(CH3)-CH2-CHO

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Why does atomic size decrease across the periods in periodic table ?

Posted by Sushmita Kaushik 5 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Prince Bdc 5 years, 3 months ago

Right

2Thank You

Yogita Ingle 5 years, 3 months ago

Atomic radius decreases across a period because valence electrons are being added to the same energy level at the same time the nucleus is increasing in protons. The increase in nuclear charge attracts the electrons more strongly, pulling them closer to the nucleus.

Explanation:

The following diagram shows the periodic trends of atomic radius of the representative elements (main group elements) for the first six periods.

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Explain why the dipole moment of chlorobenzene is lower than that of cyclohexyl chloride??

Posted by Shubham Ranjan 5 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Gaurav Seth 5 years, 3 months ago

The dipole moment of chlorobenzene is less than cyclo hexyl chloride as in chloro benzene C-Cl bond is sp2 hybridised where as in cyclohexyl chloride the C_cl bond is Sp3 Hybridised . as sp2 has more s character and more electronegative than sp3. Chlorobenzene is less polar than cyclohexyl chloride.

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Which lab Manual(practical) is best in which questions (viva) is of good quality means understanding ke liye ache ho jisse concept clear hojaye please it is my humble request if any teacher or student can suggest me I am very thankful to you ?

Posted by Janvi Sharma 5 years, 3 months ago

CBSE > Class 12 > Chemistry

4 answers

Khushboo Upadhyay 5 years, 3 months ago

Comprehensive lab manual

1Thank You

Iqbal Singh 5 years, 3 months ago

I use sp laboratory manual

1Thank You

Souparnika Gopakumar 5 years, 3 months ago

We normally use laximi publications "Comprehensive" laboratory manual...for all 3subjects... We normally use this in our school for writing practical records...

1Thank You

Janvi Sharma 5 years, 3 months ago

Sorry I forgot to mention chemistry lab manual

1Thank You

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At which tempretur fe2o will heat that it would be paramagnetic

Posted by Sandhya Bhandari 5 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Acetic acid is more acidic than phenol.why?

Posted by Aryan Singh 5 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Yogita Ingle 5 years, 3 months ago

Carboxylic acid are more acidic than phenols because the negative charge in carboxylate anion is more spread out as compared to the phenoxide ion as there are two electronegative O-atoms in carboxylate anion in comparison to one in phenoxide ion. ... So Formic acid is more acidic than acetic acid

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why na+ is electron deficient??

Posted by Khushi Rawat 5 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Deepak . 5 years, 3 months ago

Na has property to lose electron .After losing electron it becomes Electron deficient and forms Na+. Na→Na+ +. e-

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Is chemistry in daily life chapter is in syllabus 2020

Posted by Iqbal Singh 5 years, 3 months ago

CBSE > Class 12 > Chemistry

5 answers

Rushi Kesh 5 years, 3 months ago

1Thank You

Iqbal Singh 5 years, 3 months ago

thanks to all ??

1Thank You

Dev Kumar 5 years, 3 months ago

1Thank You

Aman Yadav 5 years, 3 months ago

1Thank You

Tanya ?? 5 years, 3 months ago

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Is arihant good for exams it not . If not then which is best ? btana please ?

Posted by Iqbal Singh 5 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Iqbal Singh 5 years, 3 months ago

thanks bro

1Thank You

Iqbal Singh 5 years, 3 months ago

As a basic clear book I think it clear my doubts . btana how book is this ?

1Thank You

ANSWER

Which is more stable markovnikov or anti-markovnikov?

Posted by Ekdoteen Charpanch 5 years, 3 months ago

CBSE > Class 12 > Chemistry

4 answers

Iqbal Singh 5 years, 3 months ago

Marconikov reluctant is more stable. ☺?

1Thank You

Apoorva Tiwari 5 years, 3 months ago

Markovnikov

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Tiya Singhal 5 years, 3 months ago

Markonikov

0Thank You

Chandragupta Maurya 5 years, 3 months ago

Markovnikoff

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ANSWER

What is frasch process

Posted by Gungun Arya Gupta 5 years, 3 months ago

CBSE > Class 12 > Chemistry

5 answers

Gungun Arya Gupta 5 years, 3 months ago

Thanks robin

1Thank You

Iqbal Singh 5 years, 3 months ago

Kya puchna hai pucho g

1Thank You

Atul Sharma 5 years, 3 months ago

Hello yrr meri organic chemistry weak h koi smjha skta h kya plz

1Thank You

Iqbal Singh 5 years, 3 months ago

It is industrial process used to extract sulphur from underground deposits .

1Thank You

Iqbal Singh 5 years, 3 months ago

Is your spellings r correct.

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I have nothing know about organic chemistry how i start my preparation for organic

Posted by Gungun Arya Gupta 5 years, 3 months ago

CBSE > Class 12 > Chemistry

3 answers

Iqbal Singh 5 years, 3 months ago

0Thank You

Gungun Arya Gupta 5 years, 3 months ago

1Thank You

Iqbal Singh 5 years, 3 months ago

Dear , you have to revise your work your daily work of organic daily by this you can remember the reactions easily . ☺? Best of luck??

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Kya solid state chapter cbse syllabus me h this year ya phr isshe hatha diya gya h ? Kya isshe questions nhi aate h exam me

Posted by Gungun Arya Gupta 5 years, 3 months ago

CBSE > Class 12 > Chemistry

5 answers

Gungun Arya Gupta 5 years, 3 months ago

Hmmm wo toh h

1Thank You

Iqbal Singh 5 years, 3 months ago

??????mujhe bhi difficult lgta hai Yeh solid state ????

1Thank You

Gungun Arya Gupta 5 years, 3 months ago

Ok thank u btane ke lye Robin

1Thank You

Gungun Arya Gupta 5 years, 3 months ago

Ooooo

1Thank You

Iqbal Singh 5 years, 3 months ago

Hai hai solid state es baar or es mey se question bhi atey hai

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Btana please ??

Posted by Iqbal Singh 5 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Iqbal Singh 5 years, 3 months ago

Galtermann reaction is my question

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Sahil Dongare 5 years, 3 months ago

Where is the question

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Galtermann reaction???

Posted by Iqbal Singh 5 years, 3 months ago

CBSE > Class 12 > Chemistry

5 answers

Iqbal Singh 5 years, 3 months ago

thanks

0Thank You

Iqbal Singh 5 years, 3 months ago

Chalo koi baat nhi

1Thank You

Iqbal Singh 5 years, 3 months ago

Benzene ki jga B Likh do

1Thank You

Tanya ?? 5 years, 3 months ago

Maine bhut try kia

2Thank You

Tanya ?? 5 years, 3 months ago

Likhi nhi ja rhi....

2Thank You

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Galtermann reaction ???

Posted by Iqbal Singh 5 years, 3 months ago

CBSE > Class 12 > Chemistry

5 answers

Iqbal Singh 5 years, 3 months ago

I am from punjab sorry my mistake reaction btado please g

1Thank You

Tanya ?? 5 years, 3 months ago

Haryana and u

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Iqbal Singh 5 years, 3 months ago

Tanya aap Kha se ho may I know u

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Iqbal Singh 5 years, 3 months ago

Jha pai benzene aeygi vhan B likh dena g ?

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Tanya ?? 5 years, 3 months ago

Robinpreet yha benzene ring kaise bnau....?

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What is ferrimagnetism

Posted by O The 5 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

O The 5 years, 2 months ago

Thanks

0Thank You

Yogita Ingle 5 years, 3 months ago

Ferromagnetism – The substances which are strongly attracted by the magnetic field & show permanent magnetism even when the magnetic field is removed are known as ferromagnetic substances.When there is spontaneous alignment of magnetic moments of domain in the same direction,ferromagnetism happens

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why are solids rigid??

Posted by Rainsy Dhakad 5 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Nidhi Sahu 5 years, 3 months ago

Solids are rigid due to the strong intermolecular forces between the constituent particles

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Tanya ?? 5 years, 3 months ago

Bcoz force of att. Between them is very high and also they are tightly packed.. so they are rigid

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What is the importance of haloalkane ??

Posted by Vaibhav Tomar 5 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Tanya ?? 5 years, 3 months ago

Haloalkanes are widely used commercially and, consequently, are known under many chemical and commercial names. They are used as flame retardants, fire extinguishants, refrigerants, propellants, solvents, and pharmaceuticals....

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1) Calculate the mass percentage of benzene and carbon tetrachloride. If 22g.of benzene is dissolved in 122g.of carbon tetrachloride. 2) Calculate the molarity of 40g.of sodium hydroxide in 250ml.of water..

Posted by Utpal Pradhani 5 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Answer key of 2020 exam

Posted by Arshdeep Aulakh 5 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

what is hendry's law? what is the effect of tempreature on the solublity of gas in liquid

Posted by 12M Smriti Parashar 5 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Tanya ?? 5 years, 3 months ago

Henry's law is one of the gas laws states that: at a constant temperature, the amount of a given gas that dissolves in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid.......As the temperature increases, the solubility of a gas decrease .......

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