CBSE > Class 12 > Chemistry | CBSE Board | Homework Help

Bromination of aromatic system is an electrophilic substitution reaction. Any substituent on benzene which increases the π-electron density will increase the rate (ease) of bromination.
-NH₂ is an electron donating substituent (by loan pair of electrons on N atom). So the availability of π-electron in aniline is enhance the rate of substitution of aniline.

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What is coordination no. Of FCC

Posted by Sneha Bhosale 6 years, 10 months ago

CBSE > Class 12 > Chemistry

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interhalogen are more reactive than halogen

Posted by Magician Nitin 6 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

G K 6 years, 10 months ago

becoz A-X bonds in interhalogens r weaker than the X-X bonds in halogen.......so A-X bond ko todne me km energy lgegi therfor they r more reactive........i hope its clear to u know

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Can i pass the exam from theory only

Posted by Chandra Shekhar 6 years, 10 months ago

CBSE > Class 12 > Chemistry

3 answers

Arnav Singh 6 years, 10 months ago

Just work hard you will surely achieve your goal it's not too difficult

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G K 6 years, 10 months ago

Why?? just pass? ...pure saal kha the... paas to mainly sb ho jate h....BUT ur target should be big, nd to achieve it u should work hard nd for tht u should be determined......bss abb march tk ache se mann lga ke bhi pdhloge to bhi xam kafi acha ho jayenge.....nd tumhe andr se bhi kafi khushi milegi......so ALL THE VERY BEST my frnd......??

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Mohit Kashyap 6 years, 10 months ago

Yes you can... ✌

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Heyy what actually is quantum can anyone asnwer plzz

Posted by Sinchana Malagond 6 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Anshul Khatri 6 years, 10 months ago

Quantum is basically the concept of packets ..earlier it was when people used to buy 250 grams (means to say loose items) and now packets are avialable ,application of this concept in photons energy release (which is quantised) multiples of "hf".

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I want sample paper of chem 2015 All India

Posted by Prince Patel 6 years, 10 months ago

CBSE > Class 12 > Chemistry

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Aniline does not undergo friedel crafts reaction why?

Posted by Pihu Bisht 6 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Manish Yadav 6 years, 10 months ago

aniline being a lewis base react with ALCl3 -a lewis acid form a complex salt.

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On nitration of aniline why meta product is formed...?

Posted by Ravi Badhani 6 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Yogita Ingle 6 years, 10 months ago

Direct nitration of aniline is carried out with a mixture of conc. HNO3 + conc. H2SO4 .
In the presence of these acids, aniline gets protonated to form anilinium ion, which is meta-directing. Hence, nitration of aniline gives meta derivative along with ortho and para. So, nitration of aniline is carried out by first protecting amino group by acetylation.

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Anyone give me the exact weightage of organic chapters individually to [email protected].

Posted by Navneet Gupta 6 years, 10 months ago

CBSE > Class 12 > Chemistry

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If one strand of dna has sequence 5'-G-G-A-C-T-A-C-T-3' ,what is the sequence of bases in the complementary strand

Posted by Urvashi Anand 6 years, 10 months ago

CBSE > Class 12 > Chemistry

3 answers

Sinchana Malagond 6 years, 10 months ago

3'-C-C-T-G-A-T-G-A-5'

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Navneet Gupta 6 years, 10 months ago

3'-C-C-T-G-A-T-G-A-5'

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Urvashi Anand 6 years, 10 months ago

Please send answer

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What is coordination number write the coordination number of nacl

Posted by Katravat Sreenu Nayak 6 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Navneet Gupta 6 years, 10 months ago

The no. Of adjacent atom attached to the central atom eg).NaCl have 1 CN bcz there ia only 1 Cl atom attached to Na atom .

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Rishu Kumar 6 years, 10 months ago

The number of ligends link to metal atoms and ions is called coordination number. Coordination no. of NaCl is 6

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Sir may u plzz provide me a simple short answer

Posted by Aman Tiwari 6 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Gaurav Seth 6 years, 10 months ago

Check in mycbseguide app or website. You can also google or take help of reference books.

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What is van't hoff factor .?

Posted by Md Kaif Khan 6 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

H I T E S H 6 years, 10 months ago

Van't Hoff factor account for association and dissociation. It is represented by 'i'.

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Most important topics of chemistry class 12th oraganic from chapter 10 to chapter 13 .. plzzzz... If u want. To contact me on my gmail = [email protected] plzz contact.. i want weightageof each chapter..

Posted by Kushal Dobhal 6 years, 10 months ago

CBSE > Class 12 > Chemistry

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Write the name of the biodegradable polymer used in orthopaedic device

Posted by Parveen Sharma 6 years, 10 months ago

CBSE > Class 12 > Chemistry

3 answers

Hiwani Agrawal 6 years, 10 months ago

Beta hydroxyl valerate

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Md Kaif Khan 6 years, 10 months ago

PHBV

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Shrey Raj 6 years, 10 months ago

PHBV

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What is colloidal particle

Posted by Karthi Guru 6 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Mohit Kashyap 6 years, 10 months ago

Particles of colloid

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Variation in atomic radii of d block elements

Posted by Karan Sandhu 6 years, 10 months ago

CBSE > Class 12 > Chemistry

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Kohlaursh law kya h

Posted by Prashant Sangwan 6 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Suhani Rana? 6 years, 10 months ago

It states that limiting molar conductivity of an electrolyte is equal to sum of the indivisual contribution of anion and cation of the electrolyte. The contribution of an ion is independent of nature of other ion.

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La(oh)2 is more covalent than lu(oh)2

Posted by Prashant Sangwan 6 years, 10 months ago

CBSE > Class 12 > Chemistry