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

Colloid is a state where a sute is parially soluble in rhe solvent.neither it become transparent nor is becomes opaque.no such as unvstance named colloid is known

2Thank You

ANSWER

Why medicines are more effective in colloidal state??

Posted by Avantika Tayal 6 years, 1 month ago

CBSE > Class 12 > Chemistry

5 answers

Riya Rana 6 years, 1 month ago

Larger surface area

0Thank You

Shruti Jha 6 years, 1 month ago

Because they have large surface area and are therefore easily assimilated.

1Thank You

Ankit Singh 6 years, 1 month ago

Because colloidal are very fine particles and hence large suface area

1Thank You

Killer Xmarty 6 years, 1 month ago

0Thank You

Killer Xmarty 6 years, 1 month ago

?????

0Thank You

ANSWER

Koi mujhe saral bhasha ka prayog karke why corrosion of iron is an electochemical phenomenon samjha do.

Posted by Shruti Jha 6 years, 1 month ago

CBSE > Class 12 > Chemistry

22 answers

Killer Xmarty 6 years, 1 month ago

Okk...shru

0Thank You

Shruti Jha 6 years, 1 month ago

Kuch nahi Ankit!

0Thank You

Ankit Singh 6 years, 1 month ago

Aree yahan kya hone laga

0Thank You

Shruti Jha 6 years, 1 month ago

Otherwise no need.

0Thank You

Shruti Jha 6 years, 1 month ago

Nahi!

0Thank You

Killer Xmarty 6 years, 1 month ago

Mai bhi to huna frnd shru

0Thank You

Shruti Jha 6 years, 1 month ago

Shru mat bolna, please! Shru mujhe sirf mere closest bulate hain. Mere friend gang.

0Thank You

Shruti Jha 6 years, 1 month ago

Areey i got that!

0Thank You

Killer Xmarty 6 years, 1 month ago

Yess...aur shru btaiye

0Thank You

Ankit Singh 6 years, 1 month ago

I think u got it

0Thank You

Ankit Singh 6 years, 1 month ago

Hawa pani rusting k case m hota h i mean moisture and oxygen

0Thank You

Shruti Jha 6 years, 1 month ago

It's okay!

0Thank You

Killer Xmarty 6 years, 1 month ago

Sry shru...glti ho gyi

0Thank You

Killer Xmarty 6 years, 1 month ago

Acha...

0Thank You

Ankit Singh 6 years, 1 month ago

Corrosion k nahi

0Thank You

Ankit Singh 6 years, 1 month ago

Hawa pani rusting k antargat ata h

0Thank You

Shruti Jha 6 years, 1 month ago

Hawa paani?

0Thank You

Killer Xmarty 6 years, 1 month ago

Aur mai

0Thank You

Shruti Jha 6 years, 1 month ago

Thanks Ankit!

0Thank You

Killer Xmarty 6 years, 1 month ago

Ye hawa aur paani ki wajah se hota hai...

0Thank You

Ankit Singh 6 years, 1 month ago

Q ki waha oxikaran prakriya hoti h jiske antargat vidhutadu (electron)rasayanic madham duara adaan pradan hota h

0Thank You

Killer Xmarty 6 years, 1 month ago

Acha

0Thank You

ANSWER

Why o-nitrophenol is more acidic than o-methoxyphenol ?

Posted by Gaurav Rawat 6 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Avantika Tayal 6 years, 1 month ago

Nitro group is electron widrawing grp ans so decreases the charge density on the benzene ring.it wi make oxygen partial positive in nature and hence become unstable and is more acidic.

1Thank You

???. Pragati 6 years, 1 month ago

O-nitro phenoxide ion is more stable than O-methoxy phenoxide ion

2Thank You

ANSWER

Cbse foreign 2019 ka question paper provide ho skta h kya?

Posted by Shweta Lamba 6 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Shruti Jha 6 years, 1 month ago

It's also on mycbseguide itself.

0Thank You

Gaurav Rawat 6 years, 1 month ago

From magj.cbse.nic.in

0Thank You

ANSWER

Is conversion important in chemistry .....ylll mujse nahi ho rhe h ......sir dukhne lag gya ...

Posted by Falguni Soni 6 years, 1 month ago

CBSE > Class 12 > Chemistry

73 answers

Navneet . 6 years, 1 month ago

Are nhi vo nancy bhi sayad Lucknow se h??????? nd nothing more yr

1Thank You

Killer Xmarty 6 years, 1 month ago

????

0Thank You

Killer Xmarty 6 years, 1 month ago

Aree kahan mili

0Thank You

Shruti Jha 6 years, 1 month ago

Pragati got someone in company! Ham hi akele reh gaye?

1Thank You

Shruti Jha 6 years, 1 month ago

Sure na Aman? Cuz' trust me my organic is pathetic!

1Thank You

Killer Xmarty 6 years, 1 month ago

Yes

0Thank You

Killer Xmarty 6 years, 1 month ago

I am here

1Thank You

???. Pragati 6 years, 1 month ago

Where from Lucknow ??? me too

0Thank You

Aman Sharma 6 years, 1 month ago

Yrrr suno tum name reactions yad kr lo conversion aapne aap aa jaye ge apko

1Thank You

Ritwik Choudhary 6 years, 1 month ago

?? I'm too feeling sleepy .....

0Thank You

Shruti Jha 6 years, 1 month ago

Bye bye guddies! Have a peaceful sleep.

0Thank You

Nancy Verma 6 years, 1 month ago

Guys bye gn

1Thank You

Nancy Verma 6 years, 1 month ago

0Thank You

Ritwik Choudhary 6 years, 1 month ago

0Thank You

Nancy Verma 6 years, 1 month ago

from Lucknow

1Thank You

Shruti Jha 6 years, 1 month ago

No NEET is on 3rd May!

0Thank You

Ritwik Choudhary 6 years, 1 month ago

Ahh...I'm frm Rajasthan ....n you?

0Thank You

Shruti Jha 6 years, 1 month ago

Thanks a bagful , Ayaan! You peers are exceptionally understanding and supportive!

1Thank You

Ritwik Choudhary 6 years, 1 month ago

Good luck to you ayaan

0Thank You

Nancy Verma 6 years, 1 month ago

Kaha se ho rishika

0Thank You

Ankit Singh 6 years, 1 month ago

Aree kisi ko ans atta ho to bahar bhi help kr do sabhi isi interface me h

0Thank You

Nancy Verma 6 years, 1 month ago

Gd 13 may ko hai na

0Thank You

Shruti Jha 6 years, 1 month ago

I mean Nancy**

0Thank You

Shruti Jha 6 years, 1 month ago

Haanji Nacy dala hain.

0Thank You

Ritwik Choudhary 6 years, 1 month ago

Its very hard to manage neet n board simultaneously

0Thank You

Ritwik Choudhary 6 years, 1 month ago

I'm preparing for neet as well

1Thank You

Nancy Verma 6 years, 1 month ago

Neet form dali ho kya shruti

0Thank You

Shruti Jha 6 years, 1 month ago

I will give Civil exam. Like after NEET will start preparing for IAS.

0Thank You

Shruti Jha 6 years, 1 month ago

Ho jayega Ankit! Chillax.

0Thank You

Ankit Singh 6 years, 1 month ago

Hame to frequency or wave length range hi nahi learn ho raha ????

0Thank You

Shruti Jha 6 years, 1 month ago

Thanks buddy! It's not about being top or anything. Parents have high expectations. Isliye worried ho kuch bigde na bas. Rab meher kare!

0Thank You

Shruti Jha 6 years, 1 month ago

Haha Ankit! Kuch keh nahi sakte.

0Thank You

Nancy Verma 6 years, 1 month ago

Yr shruti tumko nid nhi aata mereko to 2 bjte bjte nid aane lgta

0Thank You

Shruti Jha 6 years, 1 month ago

I have no other option Ayaan! Less time more thing to study. So..

0Thank You

Ankit Singh 6 years, 1 month ago

Koi bat nhi yaha bhi top kar lena

0Thank You

Shruti Jha 6 years, 1 month ago

Haha nor a topper! School me top karti thi so karti thi Boards me competition increases to next hi level.

0Thank You

Nancy Verma 6 years, 1 month ago

Gd topper

0Thank You

Shruti Jha 6 years, 1 month ago

Main to 5 baje soti hu!

0Thank You

Nancy Verma 6 years, 1 month ago

Kbtk jgte ap log

0Thank You

Shruti Jha 6 years, 1 month ago

Hahah Ayaan!

0Thank You

Ritwik Choudhary 6 years, 1 month ago

0Thank You

Shruti Jha 6 years, 1 month ago

Haha, Rishika rock everyone shock!

0Thank You

???. Pragati 6 years, 1 month ago

Padha Ayaan humne bhi

0Thank You

Ritwik Choudhary 6 years, 1 month ago

So what you want to title ur biodata

0Thank You

Shruti Jha 6 years, 1 month ago

Pragati, it's better but fever is still there and khaya bhi nhi kuch. Uhhh!

0Thank You

Shruti Jha 6 years, 1 month ago

I read Ayaan!

0Thank You

Shalini Singh 6 years, 1 month ago

Mere sath bhi...

0Thank You

???. Pragati 6 years, 1 month ago

Shruti tabiyat kaise h

1Thank You

Shruti Jha 6 years, 1 month ago

Ab to Rab hi bachaye organic me!

0Thank You

Nancy Verma 6 years, 1 month ago

Dear shruti aisa sbke sath hota hai judhata bhulta or at all sara hota

0Thank You

Shruti Jha 6 years, 1 month ago

Aap sab ko to yaad bhi hota hain idhar to yaad bhi nahi hota kabhi kuch judta hain kabhi kuch nikalta kabhi kuch ghumta hain and all that jazzz! Ugh.

0Thank You

Falguni Soni 6 years, 1 month ago

Good nancy ...mene to ek baar bhi nahi gye conversions

0Thank You

Nancy Verma 6 years, 1 month ago

Oo sry mai glt smjh li?

1Thank You

Ankit Singh 6 years, 1 month ago

Mere sir ka kehna hai organic gazni ke Amir Khan ke zaisa h isliye bar bar dekho hazaar baar dekho i mean padho

1Thank You

Nancy Verma 6 years, 1 month ago

Mai ek se do bar kr li hu bt last mai krna pdega hi taki bhule na kuchbhi

0Thank You

Shruti Jha 6 years, 1 month ago

Areey nancy aapne nahi prganic ne gol gol ghuma rakh kha h

0Thank You

???. Pragati 6 years, 1 month ago

Nice nancy ☺

0Thank You

Nancy Verma 6 years, 1 month ago

Kya gumayi hu gol gol

0Thank You

Falguni Soni 6 years, 1 month ago

Heheee

0Thank You

Shruti Jha 6 years, 1 month ago

Haha! Kudh gol gol ghumke hame bhi gol gol ghuma rahi hain.

0Thank You

Nancy Verma 6 years, 1 month ago

Mai to conversion ko last mai krugi taki yad rhe

0Thank You

Falguni Soni 6 years, 1 month ago

Chemistry mei to raat bhi nahi skte ....reactions gol gol gum rhi h

0Thank You

Shruti Jha 6 years, 1 month ago

Organic hi bachane wala bhi hain and dubane wala bhi.

0Thank You

Shruti Jha 6 years, 1 month ago

Nancy truly said! And that's sucks a lot.

0Thank You

Nancy Verma 6 years, 1 month ago

Baat to shi hai jitna jldi yad ho rha utna hi jldi bhul ja rha?

0Thank You

Ankit Singh 6 years, 1 month ago

Raata maaar

0Thank You

Shruti Jha 6 years, 1 month ago

Vahi na, bro! Isiliye i though to complete inorganic and physical pehle than shaanti se i will do organic.

0Thank You

Falguni Soni 6 years, 1 month ago

Yess correct miss shruti.....na jane kaisa aayega paper ...god knows

0Thank You

Shruti Jha 6 years, 1 month ago

Same here Falguni. Dimaag stops working whenever i try to do organic!

0Thank You

Falguni Soni 6 years, 1 month ago

Time bhi nahi h 20 feb se paper hai

1Thank You

Nancy Verma 6 years, 1 month ago

Relax ho ke kro its imp

1Thank You

Falguni Soni 6 years, 1 month ago

Then how to do ...bro

1Thank You

???. Pragati 6 years, 1 month ago

Yes important to hai

1Thank You

ANSWER

Most important topics of (metallurgy) General principles and processes of isolation of elements in Chemistry?

Posted by Gaurav Rawat 6 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Ayush Chadhokar 6 years, 1 month ago

? ? ? ? ?

0Thank You

Ayush Chadhokar 6 years, 1 month ago

Chap chodh de poora

0Thank You

ANSWER

Ncert solutions of alcohol and ether

Posted by Anusheh Kashyap 6 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Ritwik Choudhary 6 years, 1 month ago

It is given in this app...

0Thank You

ANSWER

Glass(SiO2) only react with

Posted by Kushal Prajapat 6 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Nancy Verma 6 years, 1 month ago

Hydrofluoric acid react with silica di oxide to produce silicantetrafloride and water

0Thank You

ANSWER

What is Beta elimination reaction?

Posted by Deepak Jaiswal 6 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Koi molar conductivity and limiting molar conductivity ki definition de do!

Posted by Shruti Jha 6 years, 1 month ago

CBSE > Class 12 > Chemistry

8 answers

Shruti Jha 6 years, 1 month ago

Thanks a ton, Nancy! It really did helped me.

0Thank You

Shruti Jha 6 years, 1 month ago

Thanks a ton, Tevar Jaat!

0Thank You

Nancy Verma 6 years, 1 month ago

Conductivity of electrolyte in unit concentration is known as molar conductivity while when concentration of electrolytes approachee zero known as limiting molar conductivity...hope this help you?

1Thank You

Tevar Jaat 6 years, 1 month ago

Molar conductivity- It is the the conductance of all ions reduced when 1 mole electrolyte is dissolved in unit volome. Limiting molar conductivity- It is defined as the sum of limiting molar conductivity of cations and anions.

1Thank You

Shruti Jha 6 years, 1 month ago

Thanks a ton!

0Thank You

Ritwik Choudhary 6 years, 1 month ago

Yes! I completed this chapter from NCERT yesterday that's why I refer you this.....

1Thank You

Shruti Jha 6 years, 1 month ago

Ye to same NCERT me diya hain but thanks a lot you, Rishika!

1Thank You

Ritwik Choudhary 6 years, 1 month ago

Molar conductivity increases with decrease in concentration as the total volume, V, of a solution containing one mole of electrolyte also increases. Upon dilution, the concentration decreases. When the concentration approaches zero, the molar conductivity of the solution is known as limiting molar conductivity

0Thank You

ANSWER

Kya koi mujhe sun sakta hain? If yes. To please mujhe application of kohlrausch law samjha do! Badi mehebani hogi.

Posted by Shruti Jha 6 years, 1 month ago

CBSE > Class 12 > Chemistry

4 answers

Shruti Jha 6 years, 1 month ago

Ye to samjh aa gaya Nancy but i am asking about it's applications!

0Thank You

Nancy Verma 6 years, 1 month ago

This rule states that limiting molar conductivity of an electrolytes can be represented as the some of individual contributions of anion and cation of the electrolyte. Isko pdho syad smjh aaaye

0Thank You

Killer Xmarty 6 years, 1 month ago

What??

0Thank You

Ritwik Choudhary 6 years, 1 month ago

Calculation of Degree of dissociation........ Calculation of solubility of sparingly soluble salt........ Calculation of Dissociation Constant for week electrolytes........ Calculation of Molar Conductivity for week electrolytes at infinite dilution

1Thank You

ANSWER

Surface chemistry me kya kya important hai

Posted by Shalini Singh 6 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Riti Bansal 6 years, 1 month ago

Adsorption , physiosorption and chemiosorprion and there examples and lock and key model

1Thank You

Shruti Jha 6 years, 1 month ago

Adsorption absorption, chemisorption physiosorption, applications, catalysis, enzyme catalysis, colloids and it's applications

1Thank You

ANSWER

Please help me in explaining forth floatation process.

Posted by Gaurav Rawat 6 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Muskaan Vig 6 years, 1 month ago

Like pine oil etc are also introduced into tank... So that suphide ores get more wet by oil and hence decreases their wettability by water......suspension in tank is aerated and froth (which contains impurities ) get produced...froth stabilizers like cresols etc are used to increase life of froth formed and it provides time to remove it easily....by this ore remains in tank and get concentrate.d ....

1Thank You

Muskaan Vig 6 years, 1 month ago

Froth flotation➞Principle: it is based on principle that suphide ores are preferentially wetted by oil and impurities are preferentially wetted by water........In a tank filled with water powered ore is put...and collectors

1Thank You

ANSWER

Hello mere Shondeshoo!!! Mujhe koi Salt Bridge ka function bata do apart from that it helps in completing the inner circuit and maintains the flow of current.

Posted by Shruti Jha 6 years, 1 month ago

CBSE > Class 12 > Chemistry

23 answers

Killer Xmarty 6 years, 1 month ago

Acha...meri jaan dogi

0Thank You

Shruti Jha 6 years, 1 month ago

Jii

0Thank You

Killer Xmarty 6 years, 1 month ago

Ooh pdhti ho tbtk

0Thank You

Shruti Jha 6 years, 1 month ago

5 baje

0Thank You

Killer Xmarty 6 years, 1 month ago

Okk..soti kb ho

0Thank You

Shruti Jha 6 years, 1 month ago

Padhai

0Thank You

Killer Xmarty 6 years, 1 month ago

Acha...ky kr ri ho??

0Thank You

Shruti Jha 6 years, 1 month ago

Haanji thik hu.

0Thank You

Killer Xmarty 6 years, 1 month ago

Okk...thanks.aur thk ho

1Thank You

Shruti Jha 6 years, 1 month ago

Jiii haan

0Thank You

Killer Xmarty 6 years, 1 month ago

Maaf kr di

0Thank You

Shruti Jha 6 years, 1 month ago

It's totally okay?!

0Thank You

Killer Xmarty 6 years, 1 month ago

I will sry.. U didn't

0Thank You

Shruti Jha 6 years, 1 month ago

Why will i be sorry?

0Thank You

Killer Xmarty 6 years, 1 month ago

Hmm... Ur sry

0Thank You

Shruti Jha 6 years, 1 month ago

Hmm

0Thank You

Killer Xmarty 6 years, 1 month ago

Okk. Ab nhi hoga sry

1Thank You

Shruti Jha 6 years, 1 month ago

Please Rameez stop it!

0Thank You

Killer Xmarty 6 years, 1 month ago

Sry

0Thank You

Killer Xmarty 6 years, 1 month ago

Sry yr

0Thank You

Shruti Jha 6 years, 1 month ago

Thank you #tuli!

0Thank You

Killer Xmarty 6 years, 1 month ago

Hlwww

1Thank You

Utpal . 6 years, 1 month ago

It help in maintain electrical neutrality by providing anion and cation to respective half -cell

1Thank You

ANSWER

What is the formula of oxygen

Posted by Snehashis Kundu 6 years, 1 month ago

CBSE > Class 12 > Chemistry

4 answers

Akul Monga 6 years, 1 month ago

0Thank You

Pranshu Kesarwani 6 years, 1 month ago

O²

0Thank You

Shruti Jha 6 years, 1 month ago

0Thank You

Lokesh Malav 6 years, 1 month ago

0Thank You

ANSWER

Why phenol shows pink colour while it is white crystalline solid

Posted by Tushar Bhola 6 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Is mechanism of hydraboration oxidation of alkene (method of preparing alcohol) is in board syllabus?

Posted by Gaurav Rawat 6 years, 1 month ago

CBSE > Class 12 > Chemistry

4 answers

Muskaan Vig 6 years, 1 month ago

Simple mechanism that is given in ncert..

1Thank You

Tapan Pandey?? 6 years, 1 month ago

No, we have to represent only reactants adduct and product.

0Thank You

Muskaan Vig 6 years, 1 month ago

Yes.it is in our syllabus.

1Thank You

Vaishnavi Kalvakuntla 6 years, 1 month ago

0Thank You

ANSWER

Difference between allylic alcohol and vinylic alcohol?

Posted by Gaurav Rawat 6 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Muskaan Vig 6 years, 1 month ago

-C=C-C-OH..is allylic alcohol....and -C=C-OH is vinylic alcohol....

0Thank You

Tushar Bhola 6 years, 1 month ago

In allylic alcohols carbon atom is attached to side carbon of double bonded carbon atoms whereas in vinylic alcohols carbon atom is attached to double bond

0Thank You

ANSWER

How O3 is thermodynamically unstable

Posted by Harshil Parashar 6 years, 1 month ago

CBSE > Class 12 > Chemistry

11 answers

Tushar Bhola 6 years, 1 month ago

Ozone is only stable at upper atmosphere but when it comes in down the atmospheric pressure exist due to this O3 breaks into O2 and [O](nascent oxygen) and nascent oxygen is unstable.

1Thank You

Vaishnavi Kalvakuntla 6 years, 1 month ago

When decomposed oxygen molecule and nascent oxygen is formed and it is unstable due to presence of nascent oxygen

1Thank You

Muskaan Vig 6 years, 1 month ago

Because it is an endothermic compound....breakdown of it into oxygen and nascent oxygen releases energy and entropy due to which ∆H is -ve and ∆S is +ve and thus ∆G becomes highly -ve i.e. ozone brekadown is more feasibel...and ozone is thermodynamically unstable...

2Thank You

Meghna Sharma 6 years, 1 month ago

??????????

0Thank You

Killer Xmarty 6 years, 1 month ago

0Thank You

Killer Xmarty 6 years, 1 month ago

K ya yrr

0Thank You

Harshil Parashar 6 years, 1 month ago

None of ur buisness?

1Thank You

Killer Xmarty 6 years, 1 month ago

Because of bond dissociation enthalpy

1Thank You

Killer Xmarty 6 years, 1 month ago

How r u

0Thank You

Harshil Parashar 6 years, 1 month ago

Plz give me ans.

1Thank You

Killer Xmarty 6 years, 1 month ago

Hiii

0Thank You

ANSWER

How to start ???where to start and what should i study the most in chemistry ...plz..kindly help me with ur suggestions ...chemistry...

Posted by Yipu Riba 6 years, 1 month ago

CBSE > Class 12 > Chemistry

4 answers

Tushar Bhola 6 years, 1 month ago

Total 12 test in our syllabus

0Thank You

Tushar Bhola 6 years, 1 month ago

Aldehyde and ketones most important chapter and all naming rxn and conversions are important all chemical test and 'diazotization' these are very important

0Thank You

Muskaan Vig 6 years, 1 month ago

Organic chem from NCERT first .....from first three do NCERT numericals .....max exam comes from organic and back exerxise ncert ques ans..

1Thank You

Suraj Kumar 6 years, 1 month ago

Only read ncert with deep

1Thank You

ANSWER

Is metallurgy chapter of chemistry a hard chapter?

Posted by Gaurav Rawat 6 years, 1 month ago

CBSE > Class 12 > Chemistry