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

The vapour pressure of a liquid is the pressure of the vapour which is in equilibrium with that liquid. The vapour pressure of a solvent is lowered when a non-volatile solute is dissolved in it to form a solution.

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ANSWER

Amines are more soluble or alcohol in water? ?

Posted by Kajal Bhardwaj 8 years ago

CBSE > Class 12 > Chemistry

3 answers

J Ranjan Parida 8 years ago

Sry guys mera answer wrong h... Actually tuke pe diya tha and even mene abhi amine padha bhi nhi h

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Anurag Yadav 8 years ago

In case of alcohols difference in electronegativity of oxygen and hydrogen is greater than between nitrogen and hydrogen in amines. Hence alcohols can form relatively stronger hydrogen bonds with water than amines can do.Thus alcohols are more soluble than amines.

2Thank You

J Ranjan Parida 8 years ago

I think amine because it can form more no. of bond while mixed with water..

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ANSWER

Name the non stoichiometric point defect responsible for colour in alkali metal halides

Posted by Kristina Sarang 8 years ago

CBSE > Class 12 > Chemistry

4 answers

Ayushi Tyagi 8 years ago

Gm aisha

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Aisha Grewal 8 years ago

0Thank You

J Ranjan Parida 8 years ago

Metal excess defect

3Thank You

Kajal Bhardwaj 8 years ago

Metal excess defect

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ANSWER

Chlorine is placed at bottle give reason

Posted by Manju Ravi 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Go Pi 8 years ago

Carbonyl chloids--- jaehull gas

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ANSWER

Why ammonia bottle should be freeze

Posted by Diksha Tayal 8 years ago

CBSE > Class 12 > Chemistry

3 answers

Lavish Tyagi 8 years ago

use nahi uday

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Lavish Tyagi 8 years ago

ammonia na use eseley use freeze kar dea jata hai

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Lavish Tyagi 8 years ago

because vapour pressure of ammonia is so high sara ammonia ud jayega bottle kholte he esley

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ANSWER

Synopsis of chemistry

Posted by Jiya Raj 8 years ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Polymers and biomolecules kis k ho gye

Posted by Anuj Chaudhary 8 years ago

CBSE > Class 12 > Chemistry

5 answers

Aisha Grewal 8 years ago

I've done ask

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Anuj Chaudhary 8 years ago

I will try

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Anuj Chaudhary 8 years ago

Ya do no

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Lavish Tyagi 8 years ago

kon sa

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Lavish Tyagi 8 years ago

puch le bhai

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ANSWER

P,d,f block kis kiska ho gya????

Posted by Ayushi Tyagi 8 years ago

CBSE > Class 12 > Chemistry

8 answers

Anuj Chaudhary 8 years ago

Or h 3 process h una bhi kr leyo

1Thank You

Lavish Tyagi 8 years ago

may bta bta k thak gya may ganour se ho

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Anuj Chaudhary 8 years ago

Lavish tu h kha sa

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Lavish Tyagi 8 years ago

mera b hogay

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Anuj Chaudhary 8 years ago

P or d and f block mostly same h

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Anuj Chaudhary 8 years ago

P block m jada nhi sare rxn must h or structure

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Ayushi Tyagi 8 years ago

Kse kiya h mko bhi bta do

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Anuj Chaudhary 8 years ago

Revision baki h

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ANSWER

Is chemistry paper is going to be difficult??

Posted by Yashasvi Gautam 8 years ago

CBSE > Class 12 > Chemistry

7 answers

Yashasvi Gautam 8 years ago

Ok thank you all

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Aisha Grewal 8 years ago

Chill yr...easy

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Lavish Tyagi 8 years ago

baki chemistry k paper esay hoga don,t worry

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Ayushi Tiwari 8 years ago

Or easy .....

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Ayushi Tiwari 8 years ago

It can be difficult

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Md Allauddin Ansari 8 years ago

Yaa

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Akash Gujjar 8 years ago

I think

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ANSWER

Define tranquilizers

Posted by Akash Gujjar 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Md Allauddin Ansari 8 years ago

DRUG which are used to reduce tension and provide relief from mental diseases are called Tranquiliser.

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ANSWER

Imp ques of all ch

Posted by Riya Sehgal 8 years ago

CBSE > Class 12 > Chemistry

4 answers

Akash Gujjar 8 years ago

In chemistry important ok

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Akash Gujjar 8 years ago

Videos of aman datterwall bhaya

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Ayushi Tiwari 8 years ago

In this app only

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Akash Gujjar 8 years ago

Go to google

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ANSWER

What is bithinol

Posted by Premjeet Kumar 8 years ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Plzz list some important mechanisms of organic chemistry??

Posted by Abhi Aahi 8 years ago

CBSE > Class 12 > Chemistry

3 answers

Abhi Aahi 8 years ago

Ok thanks

0Thank You

Akash Gujjar 8 years ago

Yes ncert ki mechanism hi important ha bad

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Ayushi Tiwari 8 years ago

Jitne ncert m h sb imp h

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ANSWER

In distinguished types question in organic chemistry can we answer of thier boiling point and reactivity instead of thier test????

Posted by Shivank Sharma 8 years ago

CBSE > Class 12 > Chemistry

3 answers

Akash Gujjar 8 years ago

1Thank You

Ayushi Tiwari 8 years ago

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Go Pi 8 years ago

No never

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ANSWER

Why is it necessary to remove CO when ammonia is obtained by haber's process ??

Posted by Rashmi Shrivastava 8 years ago

CBSE > Class 12 > Chemistry

2 answers

Akash Gujjar 8 years ago

Yes

0Thank You

Abhi Aahi 8 years ago

Bcoz it is poisnous

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ANSWER

HCl is not used to acidify KMnO4 solution. Reason?

Posted by Sandhya Valecha 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Vishal Malviya 8 years ago

Since kmno4 is a strong oxidising agent... It oxidises cl- to cl2.

1Thank You

ANSWER

Magnetic behaviour of [CoF6]3- ?

Posted by Sandhya Valecha 8 years ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Bye gyess ab chemistry padh lo ma to chala

Posted by Akash Gujjar 8 years ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Which bond is easy to break sn1 aur sn2

Posted by Ujjwal Singh 8 years ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What are the most important mechanisms for organic chemistry?

Posted by Hunny Bunny 8 years ago

CBSE > Class 12 > Chemistry

2 answers

Hunny Bunny 8 years ago

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Anuj Chaudhary 8 years ago

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ANSWER

Roult's law for volatile and non volatile}?

Posted by Amisha Jakhmola 8 years ago

CBSE > Class 12 > Chemistry

2 answers

Fire Ball 8 years ago

If wanna ask u can I have taken a break

1Thank You

Fire Ball 8 years ago

Hi it is for both it has two condition when both substances in solution are volatile and when one is non volatile

1Thank You

ANSWER

Guys how many are going through Delhi papers? Or only outside paper. Which one are yu preferring more?

Posted by Go Pi 8 years ago

CBSE > Class 12 > Chemistry

2 answers

Ramanjit Kaur 8 years ago

Dono krlo

1Thank You

Lavish Tyagi 8 years ago

delhi

2Thank You

ANSWER

What's activation complex??

Posted by J Ranjan Parida 8 years ago

CBSE > Class 12 > Chemistry

3 answers

Insha Fatima 8 years ago

It is an unstable intermediate of a reaction which lasts for a very short period and then forms products

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Hunny Bunny 8 years ago

The energy needed by the reactant molecules to form the intermediate.

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Go Pi 8 years ago

Which lessons yaar. Kinetics?

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ANSWER

How do I study organic? What if I study the back exercise of Ncert only?

Posted by Anaya Sharma 8 years ago

CBSE > Class 12 > Chemistry

3 answers

Pooja Kaswan 8 years ago

More than enough.....

1Thank You

Go Pi 8 years ago

That's OK. Be thorough with Name reactions, and all the equation given in the organic part. That would be quite practical. Be good at arraging in the required order. Reasoning p, just go through examples and intext questions. Then go for distinction pairs. And then proceed with mind maps for conversion . You may thank me if you do these things religiously well,

2Thank You

Akash Gujjar 8 years ago

Only ncert and questions of sample paper

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ANSWER

Arrhenius equation explain me in easiest simple...

Posted by J Ranjan Parida 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Go Pi 8 years ago

Its just given like it gives you the best idea for how rate of chem. Rxns Change with respect to temperature . All you'll be in need to know is to write it properly and calulate activation energy. That quatripulare, triples,... Thise kind of such are important . Not much to know

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ANSWER

ky koi asa app h jo Question ka solution dede chaha kesa b question ho vo b time to time

Posted by Abhinav Kaushik 8 years ago

CBSE > Class 12 > Chemistry