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

According to raults law the partial vapour pressure of a volatile component over a liquid surface is directly proportional to its mole fraction in the solution.

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Shashank Parashar 7 years, 6 months ago

It states that the partial vapor pressure of each component of an ideal mixture of liquids is equal to the vapour pressure of the pure component multiplied by its mole fraction in the mixture. In other words it is stated as the relative lowering of vapour pressure of a dilute solution containing nonvolatile solute is equal to the mole fraction of solute in the solution.

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What is the common name of 1,2,3-trichlorobenzene?

Posted by Monu Choudhary 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Azmat Ali 7 years, 6 months ago

Benzene trichloride

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How would you obtain anisole from phenol?

Posted by Pema Choedon 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Shaista Parveen 7 years, 6 months ago

When anisole is heated in presence of hydrogen iodide we will get phenol as a main product and iodomethane as a by product

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Cbse verification me mistake found letter kab or kaha par aayega .....

Posted by Sneha Goyal 7 years, 6 months ago

CBSE > Class 12 > Chemistry

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2mol of liquid A( P°A=500mmHg) & 1mol of liquid B(P°B=400mm of HgHg) as mixed to form an ideal solution. Calculate the vapour pressure of the solution.

Posted by Simon Pamei 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

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Write two applications if Henry's law.

Posted by Simon Pamei 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Shivanshi Singh 7 years, 6 months ago

1. Dissolution of CO2 in soft drinks. 2. Use of O2 cylinder by scuba driver.

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At 273 k the vapour prature of water is 17mm of Hg . Calculate the vapour prature of the solution in which 6g of urea is desolved in 100g of water

Posted by Akshat Nigam 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

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Function group

Posted by Anshu Negi 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Abhishek Thalaphty 7 years, 6 months ago

it is a group of person who does all the function

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Hello friends i loved physics but i dont like chemistry too much how i can do better in chemistry for board level only..

Posted by H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 6 months ago

I want to score better in all subjects

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Moral questions are coming this year in class 12

Posted by Harvinder Singh 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

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I'm a pcm student of 12th i want to do my best in 12 class can i get tips to study effectively

Posted by Ayush Uniyal 7 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

Deepak Kumar 7 years, 6 months ago

Understand the concept of topics and solve numericals

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Rishabh Sahu 7 years, 6 months ago

Boards? Or jee?

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What is super conductivity????

Posted by Mukesh Gupta 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Revanth Ms 7 years, 6 months ago

Any substence conducting electricity under 0 degree temperature is called Super conducters

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Concentrated H2SO4 has density 1.9 gm/ml & is 99% by weight . Calculate molarity of H2SO4 and also of H + ion

Posted by Shivanshi Singh 7 years, 6 months ago

CBSE > Class 12 > Chemistry

3 answers

Shubhi Jain 7 years, 6 months ago

20.71molar

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Shivanshi Singh 7 years, 6 months ago

Is it of H+ ion ??

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Prince Dagar 7 years, 6 months ago

52600 M

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Semi conductor

Posted by Mini Sharma 7 years, 6 months ago

CBSE > Class 12 > Chemistry

3 answers

Yash Garg 7 years, 6 months ago

under suitable condition semicounductor behave both conductor and insulator

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Tamoghna Roy 7 years, 6 months ago

Mostly, semimetals or metalloids are semiconductors

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Anubhi Chauhan 7 years, 6 months ago

Those substance whose conductivity lie between conductors and insulators

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Why socl2 is more preferable for making haloalkanes from the preparation of alcohol

Posted by Rizwan Sadique 7 years, 6 months ago

CBSE > Class 12 > Chemistry

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How to calculate radius of Ag in unit cell having length each side 409pm crystallisise in fcc ?

Posted by Ayush Pradhan 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Himanshu Kain 7 years, 6 months ago

144.58pm

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What is monoclinic unit cell

Posted by Himanshu Vashishth 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

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Draw the crystal field energy level diagram and predict the number of unpaired electrons in (fecl4) - (tetrahedral)

Posted by Shalu Rana 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

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What do you mean by stability of complexes?

Posted by Shalu Rana 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

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Explain how much portion of an atom located at corner

Posted by Prince Chopra 7 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

Salwa Zafar 7 years, 6 months ago

1/8

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Rishabh Pandey 7 years, 6 months ago

1|8

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What is the formula of alum?

Posted by Rahul Singh 7 years, 6 months ago

CBSE > Class 12 > Chemistry

3 answers

Rishabh Sahu 7 years, 6 months ago

Common formula M2SO4.N3(SO4}3.24 H2O it is only formed by some di and trivalent metals.

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Anshuman Yadav 7 years, 6 months ago

Itna nahi pata mujhe aata hai par tumhe kyu bataoo

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Tamoghna Roy 7 years, 6 months ago

Which alum? Potash alum - K2SO4.AL2(SO4)3.24H2O CHROME ALUM - K2SO4.Cr2(SO4)3.24H2O

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The rate constant of a reaction at 500 K and 700 Kare 0.02per second and 0.07 per second respectively calculate the value of Ea and A.

Posted by Vijay Panwar 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

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Aquatic animals are comfortable in cold water rather than in warm water.why?

Posted by Vaishnavi Singh 7 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

Parul Maiya 7 years, 6 months ago

Acc. to Henry law solubility is inversely proporsonal to temp. So,in hot water oxygen is less soluble in water and when temp. decrease oxygen is more dissolved .

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Saloni S 7 years, 6 months ago

Because when temperature increases solubility decrease according to Henry law . and when temperature decrease solubility increase do aquatic animals are more comfortable in cold water rather than a hot water.

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Compartment hai mera chemistry mee

Posted by Ratnam Pandey 7 years, 6 months ago

CBSE > Class 12 > Chemistry