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Why aniline is weaker base than cyclohexyl amine??

Posted by Jayaasrii?? Jayaasrii 6 years, 10 months ago

1 answers

Kriti Tiwari 6 years, 10 months ago

Aniline has delocalisation of the electronsof the nitrogen with the ring thus decreasing the electron density on the nitrogen atom in turn making the donation of electrons by the N atom difficult hence decreasing the basic character of aniline. No such delocalisation is observed in cyclohexyl amine.

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What are homoleptic and heteroleptic complexes?

Posted by Raghav Bhardwaj 6 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Gaurav Seth 6 years, 10 months ago

The homoleptic complex is the one which depends on the identical ligands whereas the heteroleptic complex is the one which has more type of the ligands on the elements.

In the category of the homoleptic complex, the compound is a metal compound whereas the heteroleptic complex will have transition metal to it.

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Structure of semi carbazone of ethanal

Posted by Shahid Mehdi 6 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Arpan Basu Sachdeva 6 years, 10 months ago

NH2 | NH | C=O | NH2

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Why is sulphuric acid not used during the reqction of alcohols with KI?

Posted by Mannavan J 6 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Pallavi Pradhan 6 years, 10 months ago

Because h2so4 can easily convert ki to i2 which is an unnecessary product in our rxn

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Arpan Basu Sachdeva 6 years, 10 months ago

Alcohol + HI ? akyl iodide I want to tell u that U CAN USE....KI + H2SO4 in place of HI

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Define schottky defect with example

Posted by Rishabh Chaurasia 6 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Suhani Rana? 6 years, 10 months ago

It is basically a vacancy defect in ionic solid in order to maintain the electrical neutrality the no of cation and anion missing are equal. Like simple vacancy defect schottky defect also decrease the density of substance. For eg in NaCl there are appex 10^16 schottky pairs per cm^3 at room temp in 1cm^3 there are about 10^22 ions. Thus there is one schottky defect is shown by ionic substance in which cation and anion sre of almost same size. And some other exsmples are kcl,AgBr

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Mannavan J 6 years, 10 months ago

Cations and anions in equal number are missing from the crystal lattice giving rise to voids. E.g NaCl, CsCl.

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To prepare 100ml of m/25 oxalic acid

Posted by Gagan Singh 6 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Sahil Sihag 6 years, 10 months ago

Use m/25 = 90/25 And for 100 ml use m/2500 = 90/2500 g = 0.36g

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Sahil Sihag 6 years, 10 months ago

Molar Mass of oxalic acid(COOH-COOH) = 90g To prepare 100ml solution of m/25 =

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Write the formula of neutral molecule ClO- is isoelectronic

Posted by Azeem Amini 6 years, 10 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What are transistors? What are they used for?

Posted by Vaibhav Chaubey 6 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Nandan Verma 6 years, 10 months ago

Transistor is a semiconductor device which is use as an amplifier or a switch

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Titration of alkali

Posted by Ayushi Choudhury 6 years, 10 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Etanol to but 1 yne

Posted by Arv Shri 6 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Megha Singhal 6 years, 10 months ago

CH3-CH2-OH+SOCl2 → CH3-CH2-Cl CH3-CH2-Cl+CH=_CNa→CH3-CH2-C=_CH

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Raghav Bhardwaj 6 years, 10 months ago

CH CH COOH + PCl -----------) CH3 CH2 Cl 3 2 5 CH3 CH2 Cl + CH C Na ---------) CH C CH2 CH3 +NaCl But-1-yne

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How to find whether a halogen atom bonded to a carbon atom is sp³ hybridised or sp² hybridised?

Posted by Sunita Rastogi 6 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Vishnu Raj 6 years, 10 months ago

In aromatic compounds halogen will be attached to sp2 hybridized carbon But in alliphatic ....halogen is attached to Sp3 hybridised carbon

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23×3

Posted by Shama Parveen 6 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Rahul Semwal 6 years, 10 months ago

233

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Steucture of xef2 cant be explained by vbt.why?

Posted by Kirti Mathur 6 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Aditya Roy 6 years, 10 months ago

Because they are exceptional cases!

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What is common ion effect?

Posted by Mansi Sharma 6 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Vishal Kumar Handa 6 years, 10 months ago

When the dissasociation energy of weak electrolyte is supress by a strong electrolyte having a common ion then , this process is called common ion effect

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How do you convert for the following A)ethanal to propanone

Posted by Amarnath Jena 6 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Amarnath Jena 6 years, 10 months ago

Right ta

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Gaurav Seth 6 years, 10 months ago

Ethanal to Propanone

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ANSWER

C6H5-O-C2H5

Posted by Prashant Sappati 6 years, 10 months ago

CBSE > Class 12 > Chemistry

4 answers

Sahil Sihag 6 years, 10 months ago

Best prepration for this ether is Williamson synthesis i.e. R-Cl + R-ONa ------> R-O-R + NaCl For this reaction C2H5-Cl + C6H5-ONa -------> C6H5-O-C2H5 + NaCl

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Aditya Roy 6 years, 10 months ago

See its R-O-R which is basically a Ether And IUPAC name is ethoxy benzene

2Thank You

Amandeep Kumar 6 years, 10 months ago

Sorry fitting reaction nhi hoga

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Amandeep Kumar 6 years, 10 months ago

Fitting reaction

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Any one tell me the important topic in Coordination compound for Board(CBSE).

Posted by Amit Dubey 6 years, 10 months ago

CBSE > Class 12 > Chemistry

4 answers

Amit Dubey 6 years, 10 months ago

I never belive on hard work...i belive on smart work.

0Thank You

Sahil Sihag 6 years, 10 months ago

CFT Crystal field theory

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Rahul Semwal 6 years, 10 months ago

Satya vachan

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Aditya Roy 6 years, 10 months ago

THERE IS NO IMPORTANCE OF A PARTICULAR CHAPTER ALL CHAPTERS A RE WISELY IMPORTANAT

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If I concentrate on ncert for chem exercise and intext then what is the probability of getting.in board?

Posted by Ambuj Mishra?? 6 years, 10 months ago

CBSE > Class 12 > Chemistry

7 answers

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

I think if you do ncert only ,u will easily got 80+. But u have to done all text, intext, solved, unsolved and all other types of questions. ?

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Preeti Dahiya 6 years, 10 months ago

It depends on you ,no one can predict ?

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Amandeep Kumar 6 years, 10 months ago

Then why are you giving this probability formula..answer it very clearly ....yanha Aap Majak karne nahi aaye hai

2Thank You

Aditya Roy 6 years, 10 months ago

First of all hum yaha pe mazak nhi kar rhe mere 100 ayange maths me liken yaha pe hume chemistry ka v th deakhna hai bande nhi doubt pucha hai wo clear kare aap

2Thank You

Aditya Roy 6 years, 10 months ago

P(getting in board exam)=P(A Π B) =P(A).P(B)

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Amandeep Kumar 6 years, 10 months ago

Probability is 0

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Yuvraj Sharma 6 years, 10 months ago

80+

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Chemistry viva questions 12th class

Posted by Akash Rathore 6 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Cicil George 6 years, 10 months ago

Qs can come from ur project, salt u get (tests,confirmations etc),titrations,nd some name reactions.....

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Amines Detailed notes

Posted by Janak Kansara 6 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Preeti Dahiya 6 years, 10 months ago

Ncert 13th chapter

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Rahul Semwal 6 years, 10 months ago

,-#-#+$($)#+#-#-#-#-#+#+$:;"!$)#)#(#;#:$!$)*)$-#-1-@:#+#(#)#!#-$ #+#+#(#(*?✓©™¢{¢{~¶`×¢π¢°✓€™¢}¢¶{((!#:#;#9÷¢™;={=¢✓¢{¢}¢[€[€]€}€}€]¢=¢°¢°¢=¢=¢=€=€=€>

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How to study the chemistry for board exam.

Posted by Mansi Sharma 6 years, 10 months ago

CBSE > Class 12 > Chemistry