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

remembering the mechanism is the major problem we are facing in chemistry so what u have to do write the mechanism 3-4 times fromm ncert only after that try to write same mechanism on your own. but don't do rattafication of it first understand those mechanism so, that ke apko pta chal paye ke ho kya raha hai usmein... then organic is famous for their name rxn learn all the name rxn that are given in ncert an never forget to do conceptual question as chemistry is all about its concept. so do your best. Best of luck.

4Thank You

Aman Kumar 6 years, 4 months ago

Bro, mujhse kharab halat nhi hogi tumhari....but then also I m giving my best....and who says to u to learn the reaction...just understand its mechanism...u will automatically get it..aur ager learn hi karna hai toh....likh likh ke yaad karo...tumhari habit bhi ho jayegi ...

4Thank You

ANSWER

Prove chlorine is an oxidizing agent and bleaching agent

Posted by Jaya Lakshmi 6 years, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Anmol Gupta 6 years, 4 months ago

Chlorine is highly electronegative element and it gain the electron from other elements hence it is an oxidizing agent

1Thank You

ANSWER

Assertion and reasoning p block elements

Posted by Jaya Lakshmi 6 years, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Joshita Umanath 5 years, 9 months ago

1Thank You

ANSWER

One litre of an aqueous solution in which [h2co3] =[hco3] = 0.10 M has [H+] = 4.2 *10^-7 M what is the [h+] after 0.02 moles of NaOH has been added?

Posted by Siddhi Poreddiwar 6 years, 4 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Explain, How phenol is prepared From Cumene..and also get acetone as by-product.?......Just give me a little idea of its mechanism..if possible..

Posted by Aman Kumar 6 years, 4 months ago

CBSE > Class 12 > Chemistry

14 answers

Řøhăň Řąjpůť ✌️✊ 6 years, 4 months ago

nicely explained. ? #bacchi badi ho gyi. ? ? ?

2Thank You

Tushar Bhola 6 years, 4 months ago

Cumene/isopropyl benzene + oxygen with metal catalyst and temp<130C forms Cumene hydroperoxide. Cumene hydroperoxide get hydrolysis with some heat forms phenol + acetone

2Thank You

Aman Kumar 6 years, 4 months ago

Koi nhi..,?...mai aese aur questions puch ke tumhara hasab barabar karwa dunga?☺️?

2Thank You

∂Αяѕнαиαα ყα∂Αѵ ??? 6 years, 4 months ago

? ? abb toh pakka short term memory loss hai. ? ? ? tumne bhi Cs aur physics mein bahut help kari hai meri so hisab barabar toh nhi bit half kiya hai Maine. ? ? ?

3Thank You

Aman Kumar 6 years, 4 months ago

Haan samjh gya.. thank u so much...tumne bahot ache se explain kiya????

2Thank You

∂Αяѕнαиαα ყα∂Αѵ ??? 6 years, 4 months ago

4-methylphenol is more acidic than propan-1-ol becoz phenol are stronger acids than alcohols, because the phenoxide ion left after the removal of Proton is stabilised by resonance while the alkoxide ion left the removal of a Proton from alcohol is not stabilise thus propan-1-ol is much weaker acid than any phenol. so, 4-methylphenol is more acidic than propan-1-ol. ? smjhe. ?

3Thank You

Aman Kumar 6 years, 4 months ago

Which is more acidic :- Propan-1-ol and 4-methylphenol..... along with reason????

2Thank You

Aman Kumar 6 years, 4 months ago

One more question....???

1Thank You

Aman Kumar 6 years, 4 months ago

Wo kya hai na...mujhe bhi aadat hai, thanks bolne ka...?..ohk then, tum sab thanks bol sakte ho...abb mai nhi rokunga??....

2Thank You

∂Αяѕнαиαα ყα∂Αѵ ??? 6 years, 4 months ago

lagta hai tum khud apni baat bhulte jaa rahe ho. ? ? ? short term memory loss. ? ? anyways welcome. ?

3Thank You

∂Αяѕнαиαα ყα∂Αѵ ??? 6 years, 4 months ago

there is no any such mechanism in our syllabus. but just remind this on aerial oxidation at 368-408k from cumene hydroperoxide which upon subsequent hydrolysis with an aq. acid gives phenol and acetone.

4Thank You

Aman Kumar 6 years, 4 months ago

When cumene converted to cumene hydroperoxide...is there any mechanism of it?? I mean how hydroperoxide is formed?....If there is no any such mechanism then no prblm.... thanks again 4 the help?

2Thank You

Aman Kumar 6 years, 4 months ago

Thanks ☺️?

2Thank You

∂Αяѕнαиαα ყα∂Αѵ ??? 6 years, 4 months ago

From cumene (isopropyl benzene) is oxidised in presence of air to cumene hydroperoxide. it is decomposed to phenol and acetone by treating with acid, Acetone the by product of this rxn Is also obtain in large quantities.

4Thank You

ANSWER

All the answers of sample paper 2020

Posted by Sara Khan 6 years, 4 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What's the order of basicity of aliphatic amines???

Posted by Chetna Bhatt 6 years, 4 months ago

CBSE > Class 12 > Chemistry

4 answers

Neetu Sharma 6 years, 4 months ago

Tertiary > secondary > primary amines

2Thank You

∂Αяѕнαиαα ყα∂Αѵ ??? 6 years, 4 months ago

3°amine >2°amine >1°amine.

3Thank You

Chetna Bhatt 6 years, 4 months ago

Then after 3????

0Thank You

Rishikesh Tiwari 6 years, 4 months ago

0Thank You

ANSWER

how to prepare conversion in organic chemistry

Posted by Kartik Bharti 6 years, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Chetna Bhatt 6 years, 4 months ago

Firstly learn name reactions properly it can help you in conversion

4Thank You

ANSWER

I want to notes of solid state

Posted by Golu Kumar Singh 6 years, 4 months ago

CBSE > Class 12 > Chemistry

3 answers

Abhimanyu Kaul 6 years, 4 months ago

Aman dhattrwal bhaiya ke notes le lo best hai YouTube par

0Thank You

Chetna Bhatt 6 years, 4 months ago

It's not in the syllabus of boards

2Thank You

Sushant Saini 6 years, 4 months ago

Solid state chla gya...

2Thank You

ANSWER

How would you determine the standard electrode potential of the system mg2+/mg?

Posted by Madhumita Banik 6 years, 4 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Which rxn Oxidezn

Posted by Abhigyan Singh 6 years, 4 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

How can we know the value of n in faraday's law when we write E=F*Z so we divide E/N*f How we can know the value of n..?

Posted by Siddharth Lekhwar 6 years, 4 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

what is the weightage of organic portion in class 12 th chemistry?

Posted by Aditya Verma 6 years, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Kalpana Jha 6 years, 4 months ago

22 marks including the last 3 chapters

0Thank You

ANSWER

What is tungsten ore?

Posted by Musu Jaat 6 years, 4 months ago

CBSE > Class 12 > Chemistry

2 answers

Musu Jaat 6 years, 4 months ago

Tq for answer

0Thank You

Saurya Aayush 6 years, 4 months ago

It is row material for tungsten metal

0Thank You

ANSWER

what is retention ??

Posted by Ankit Chaudhary 6 years, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Rishabh Rathi 6 years, 4 months ago

Spacial arragement is not changed i.e atoms are at there own places even after reaction.

0Thank You

ANSWER

What is difference between lanthnoid and actinoid contraction?

Posted by A Singh 6 years, 4 months ago

CBSE > Class 12 > Chemistry

2 answers

Kartik Gupta 6 years, 4 months ago

Lanthanoid contraction occur in lanthanoid(6th period) and Actinoid contraction occur in actinoid.??????????

2Thank You

Musu Jaat 6 years, 4 months ago

Lacthnoid contraction have a high shielding effect compare to actinoids ..and actinoids contraction have poor shielding effect

2Thank You

ANSWER

Is exam idea best for preparation of chemistry after prepare ncert

Posted by Yash Sharma 6 years, 4 months ago

CBSE > Class 12 > Chemistry

3 answers

Kartik Gupta 6 years, 4 months ago

I prefer MTG 10 year ncz it has past 10 year question chapterwise,topicwise and give you map about most important topics with there weightage.????

2Thank You

Chetna Bhatt 6 years, 4 months ago

Yeah it's quite gud!!

2Thank You

Janvi Rajesh 6 years, 4 months ago

Yes i refer them

1Thank You

ANSWER

Bhaiyo or mari pyari pyari behainooo mai is APP per naya hooo kya aap mari help kar saktai hai

Posted by @@Ditya ®°@Thore????? 6 years, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Chetna Bhatt 6 years, 4 months ago

Just ask questions and give answers to asked questions only....no any other chat....

5Thank You

ANSWER

How is histamine responsible for nasal congestion?

Posted by Kalpana Jha 6 years, 4 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is cppolyner

Posted by Sumit Kumar 6 years, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Chetna Bhatt 6 years, 4 months ago

The polymers having more than one type of monomers are called copolymers

0Thank You

ANSWER

Sir is there any cut in the portion of polymers?

Posted by Chandra Deep 6 years, 4 months ago

CBSE > Class 12 > Chemistry

2 answers

Anushree Agarwal 6 years, 4 months ago

Yes..Classification of polymer

1Thank You

Chetna Bhatt 6 years, 4 months ago

No..

0Thank You

ANSWER

In phenol and Carboxylic acid which is more acidic and why?

Posted by Asheesh Rai 6 years, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Lakshay Bhardwaj 6 years, 4 months ago

Carboxylic acid because of inductive effect it will release Heasily

2Thank You

ANSWER

where is the activities in chemistry book

Posted by Sweta Kumari 6 years, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Raavan The Devil 6 years, 4 months ago

Activities are not in ncert book . These are in physic lab manual book...

2Thank You

ANSWER

Formula used for black and white photography

Posted by Prabhjot Kaur 6 years, 4 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

How we can memories all the reaçtions of organic chemistry.....any tricks

Posted by Jayanti K 6 years, 4 months ago

CBSE > Class 12 > Chemistry

5 answers

Siddhi Poreddiwar 6 years, 4 months ago

First of all work on your english!

0Thank You

Chitransh Shrivastava 6 years, 4 months ago

You can write them again and again by doing this u can memories reaction hopefully..?

0Thank You

Saurya Aayush 6 years, 4 months ago

Regular practice is only one solution

0Thank You

Rishabh Gupta 6 years, 4 months ago

I can try this but it can't work

0Thank You

Mugha ? 6 years, 4 months ago

No need to memorize..... Just write down all the reactions on a chart paper,,, paste it on the wall of your study room,,, and refer to it and practice it on a regular basis,,,,,,, and see the magic within 15 days???

12Thank You

ANSWER

Divide 10 hours between P block elements and Biomolecules

Posted by Clash With . 6 years, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Himanshu Pandey 6 years, 4 months ago

?¿

4Thank You

ANSWER

Chapter Wise weightage for chemistry???for 2020 board exam

Posted by Muskan Khan 6 years, 4 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What do you means by isomer

Posted by Girish Chauhan 6 years, 4 months ago

CBSE > Class 12 > Chemistry

2 answers

Chitransh Shrivastava 6 years, 4 months ago

Molecules with same molecular or chemical formula having different structures are known as isomer

0Thank You

Yogita Ingle 6 years, 4 months ago

Isomerism is the phenomenon in which more than one compounds have the same chemical formula but different chemical structures. Chemical compounds that have identical chemical formulae but differ in properties and the arrangement of atoms in the molecule are called isomers. Therefore, the compounds that exhibit isomerism are known as isomers.

1Thank You

ANSWER

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