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Why iodio benzene can prepared by adding cu2x2 and diazonium salt while bromide and chloride benzene not??

Posted by Shivani Dagar 7 years, 9 months ago

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Pls explain the sipole movement of haloalkanes....? It should increase as the bond length increases while going down the group but its very different for haloalkanes...?

Posted by Nishtha Pandya 7 years, 9 months ago

CBSE > Class 12 > Chemistry

2 answers

Nishtha Pandya 7 years, 9 months ago

Bcoz down the group electronegativity decreases so the polarisation . And so the dipole moment shld decrease but for CH3Cl the value is higher than CF3 as CF3 has small bond length therefore its dipole moment is slightly less then that of CH3Cl

1Thank You

Nishtha Pandya 7 years, 9 months ago

Sorry not sipole it is dipole....!!!

2Thank You

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In which one of two structures, NO2+and NO2-,the bond angle has a higher value?

Posted by Sunny Singh 7 years, 9 months ago

CBSE > Class 12 > Chemistry

0 answers

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Desperately in need of help to prepare for CBSE class 12 Chemistry. I am a dummy student caught in an exasperating crisis. Please Help!

Posted by Eye Opener 7 years, 9 months ago

CBSE > Class 12 > Chemistry

2 answers

Zenil Mehta 7 years, 9 months ago

ofc its illegal buddy..!!

1Thank You

Eye Opener 7 years, 9 months ago

Is Dummy legal?

2Thank You

ANSWER

importance of 6 and 6,6 in polymer nylon 6 and nylon 6,6 ???

Posted by Riya Sharma 7 years, 9 months ago

CBSE > Class 12 > Chemistry

2 answers

Riya Sharma 7 years, 9 months ago

thanks vansh

0Thank You

Vansh Luthra 7 years, 9 months ago

It tells about the number of carbon atoms in its monomers

2Thank You

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This year(2018) how many questions will be ask in chemistry exam of class 12 the??

Posted by Nitish Singh 7 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Riya Tripathi 7 years, 9 months ago

Nearly 26!!

5Thank You

ANSWER

what is racemic mixture and racemisation?

Posted by Muskan Chauhan 7 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Sharvistha Githala 7 years, 9 months ago

A mixture contaning two enentiomers in equal proportions will have zero optical rotation , as the rotation due to one Isomer will be cancelled by rotation of other isomer such a mixture is called recemic mixture and the process of formation of recemic mixture is known as racemisation

3Thank You

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Formula of siderite?

Posted by Lalit Maan 7 years, 9 months ago

CBSE > Class 12 > Chemistry

4 answers

Lalit Maan 7 years, 9 months ago

State and drive Rochie effect of attraction ? ??

3Thank You

Lalit Maan 7 years, 9 months ago

What is Rochie ?in chemistry ??

4Thank You

Vedita Chaturvedi 7 years, 9 months ago

FeCO3

3Thank You

Lalit Maan 7 years, 9 months ago

Siderite = ???

3Thank You

ANSWER

Learn only ncert to score 60 in chemistry

Posted by Arya Thakur 7 years, 9 months ago

CBSE > Class 12 > Chemistry

8 answers

Shruti Agarwal 7 years, 9 months ago

So what's a big deal to get 60 marks in chemistry.

0Thank You

Abhijeet Khandelwal 7 years, 9 months ago

Do intex & exercise questions

2Thank You

Vedita Chaturvedi 7 years, 9 months ago

But how

1Thank You

Abhijeet Khandelwal 7 years, 9 months ago

I m telling seriously

2Thank You

Abhijeet Khandelwal 7 years, 9 months ago

Ya i m seriously

2Thank You

Vedita Chaturvedi 7 years, 9 months ago

How u r so confident

1Thank You

Vedita Chaturvedi 7 years, 9 months ago

Seriously

1Thank You

Abhijeet Khandelwal 7 years, 9 months ago

3Thank You

ANSWER

Use of lime stone

Posted by Tanu Shukla 7 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Shivani Dagar 7 years, 9 months ago

Depends where u r using

0Thank You

ANSWER

Ncert intext ques.15 on page 21

Posted by Sweety Sharma 7 years, 9 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Sample paper of class 12

Posted by Manjeet Prasad 7 years, 9 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Chemistry me NCERT hi aata hai bs

Posted by Daksh Chilkoti 7 years, 9 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Packing efficiency is imp????

Posted by Aashifa Siddiqui 7 years, 9 months ago

CBSE > Class 12 > Chemistry

4 answers

Shivani Dagar 7 years, 9 months ago

Should be revised

0Thank You

Abhijeet Khandelwal 7 years, 9 months ago

Yes

3Thank You

Ramanjit Kaur 7 years, 9 months ago

Pta ni

0Thank You

Aashifa Siddiqui 7 years, 9 months ago

Btao n koi

0Thank You

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What are enantiomers??

Posted by Sruthi Sks 7 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Ronak Goyal 7 years, 9 months ago

Enantiomers are the molecules which are non super imposible mirror images

1Thank You

ANSWER

Aniline does not undergo friedal craft rxn

Posted by Kapil Meena 7 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Lalit Yadav 7 years, 9 months ago

Due to salt formation with AlCl3

0Thank You

ANSWER

Posted by Vaishnavi Sharma 7 years, 9 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

draw the structure of 4 -bromo- 4-methylpentane _2-ene

Posted by Arpan Pawar 7 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Honey Sharma 7 years, 9 months ago

Very easy..

0Thank You

ANSWER

What is ionisation energy

Posted by Vaishnavi Sharma 7 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Abhishek Singh 7 years, 9 months ago

Ionisation Energy is the amount of energy required for the removal of one electron from the outermost orbit of an isolated gaseous atom..

1Thank You

ANSWER

From where to start preparing for exam

Posted by Kanishk Aggarwal 7 years, 9 months ago

CBSE > Class 12 > Chemistry

2 answers

Ramanjit Kaur 7 years, 9 months ago

1st chapter se shuru kro aur theory pdho

1Thank You

Pratik Patra 7 years, 9 months ago

NCERT exercise and intext questions

1Thank You

ANSWER

A translucent white waxy solid (A) on heating in an inert atmosphere is converted to it's allotropic from (B). Allotrope (A) on reaction with very dilute aqueous KOH liberates a highly poisonous gas (C) having rotten fish smell. With excess of chlorine it forms (D) which hydrolyses to compound (E). Identify compounds (A) to (E)

Posted by Sweety Priya 7 years, 9 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is electolytic cell&electrolysis??

Posted by Menaga Gunasekaran 7 years, 9 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Chemistry main good marks k liye Kaise prepare karoon? Kahan se padhon, ncert se ki reference ,ya last year paper solve karo plz tell me..

Posted by Annu Parween 7 years, 9 months ago

CBSE > Class 12 > Chemistry

4 answers

Pratik Patra 7 years, 9 months ago

NCERT exercise n intext questions are sufficient...

0Thank You

Pooja Bora 7 years, 9 months ago

Only ncert

0Thank You

Honey Sharma 7 years, 9 months ago

Ncert bhut h bhai..

0Thank You

Ajay Singh 7 years, 9 months ago

Ncert ki theory pado

0Thank You

ANSWER

Write one similarity between physisorption and chemisorption

Posted by Vishesh Dixit 7 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Menaga Gunasekaran 7 years, 9 months ago

Depends on nature of gas&surface area

2Thank You

ANSWER

What type semicondutor is obtained when silicon is doped with arsenic semiconductors ??

Posted by Komal Panwar 7 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Namamee Shukla 7 years, 9 months ago

N type

5Thank You

ANSWER

Why frankel defect are not found in alkali metal halide ??

Posted by Komal Panwar 7 years, 9 months ago

CBSE > Class 12 > Chemistry

2 answers

Eati Srinivasa Rao 7 years, 9 months ago

Alkali metal halides have high lattice enthalpy so the atoms cannot dislocate easily

0Thank You

Nikhil Khandal 7 years, 9 months ago

As the size of action in alkali metal is large

2Thank You

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What are Natural polymers?

Posted by Atul Kumar 7 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Menaga Gunasekaran 7 years, 9 months ago

Polymer which are obtained naturally like rubber

1Thank You

ANSWER

Refractibe index of a solid is observed to have the same value along all direction. Comment on the nature of solid

Posted by Vaibhav Bhasin 7 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Nikhil Khandal 7 years, 9 months ago

Amorphous solid as they are isotropic in nature

2Thank You

ANSWER

What would be the nature of solid if there is no energy gap between valence band and conduction band ?

Posted by Nishant Singh Singh 7 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Menaga Gunasekaran 7 years, 9 months ago

Conductor

1Thank You

ANSWER

Is there any difference between 1 chloloethene and chloloethene?

Posted by Shivani Dagar 7 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Diya Joshi 7 years, 9 months ago

No...as it have only two molecules...wherever the Cl molecule is attached counting starts from there

1Thank You

ANSWER

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