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What type of deviation is shown by a mixture of ethanol and acetone ? Give reason.

Posted by Aayush Kaushal 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Dhruv G 7 years, 2 months ago

+ve, since bond of pure ethanol with hydrogen atoms break on addition of acetone hence vapour pressure of resulting mixture is higher than that predicted by Raoult's Law......so +ve deviation.

ANSWER

State Raoults law for a solution containing volatile components.How does Raoults law becomes a special case of Henry's law?

Posted by Aayush Kaushal 7 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Dhruv G 7 years, 2 months ago

✌part: Because Henrys law (P=KH*x) and Raoults law (P=P°x) vary only due to Henry's law constant (KH) and vapour pressure of pure component (P°), hence if Henrys law constant becomes = to P° then Raoults Law becomes a special case of Henrys law....

Dhruv G 7 years, 2 months ago

Raoults Law for volatile component- On adding volatile solute in the solvent the partial pressure of any component is directly proportional to its mole fraction. P∝x ➡ P=P°x

ANSWER

A solution is prepared by dissolving 10g of non-volatile solute in 200g of water. It has a vapour of 31.84mm of Hg at 308K. Calculate the molar mass of solute.(Vapour pressure of pure water at 308K=32mm Hg).

Posted by Aayush Kaushal 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What happen we place the blood cell in water (hypotonic solution)? Give reason.

Posted by Aayush Kaushal 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Thejaswini Chirnalli Mattad 7 years, 2 months ago

Water passes out of the cell due to osmosis and the cell shrinks

ANSWER

On mixing liquid X and Y, volume of the resulting solution decreases. What type of deviation from Raoults law is shown by resulting solution? What change in temperature would you observe after mixing liquid X and Y ?

Posted by Aayush Kaushal 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

We Ayush 7 years, 2 months ago

Volume of resulting solution decreases .hence it shows negative deviation from raoult law.it is exothermic on nature hence temp increases

ANSWER

What is the process of halogenation reaction.

Posted by Rishabh Tiwari 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is electrochemistry?

Posted by Rakesh Yadav 7 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Rakesh Yadav 7 years ago

Tqq yogita*

Yogita Ingle 7 years, 2 months ago

Electrochemistry is defined as that branch of chemistry which deals with the study of the production of electricity from the energy that is released during spontaneous chemical reactions and the use of electrical energy to bring about non-spontaneous chemical transformations. There are various places where electrochemistry is important, e.g. electrochemistry is used for the purpose of electroplating, electrochemistry is required in the production of metals like Na, Mg. Ca and Al., in the purification of metals and also in Batteries and cells used in various instruments.

ANSWER

Ch-3 class 9 notes

Posted by Naveen Rathore 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

The bond angles (O-N-O) have not the same value in no2+ve and no2-ve

Posted by Vikash Punia 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

p4o6 reacts with h20 according to the equation p4o6+6h2oforms 4h3po3 Calculate the volume of 0.1m NaoH solution required to neutralise the acid formed by dissolving 1.1g of p4o6 in h2o

Posted by Vikash Punia 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is the deference between homolaptic and hertolaptic

Posted by Mayur Yadav 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Amresh Sah 7 years, 2 months ago

The compound which have two identical ligand called homolaptic otherwise it is hetrolaptic.

ANSWER

A compound formed by elements A and B has a cubic structure in which A atoms are at corners of the cube and B atoms are at face . Derive the formula of the compound.

Posted by Ankita Paikray 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

One of the apporach to the study of realgases involve the analysis of a parameter Zcalled the compressibility factor Z=PVm\Rt where Pis pressure Vm is molar volume ,Tis absolute temp and R is the 7niversal gas constant . Such a relation can alsobe explain asZ=Vmreal /vmideal are the molar volume for ideal and real gas respectively gas correspondingZ>1have repulsive tendendency among constitutent particles due to their size factor ,wheres those corresponding to Z<1have attrative force among constitute paryicles as the pressure is lowered increase the value of Zaporach 1

Posted by श्वेत रानि 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Which test is recommended for nitrates

Posted by Yo Yo Honey Singh ? 7 years, 2 months ago

CBSE > Class 12 > Chemistry

4 answers

Rohan Kumar 7 years, 2 months ago

Aap itne intelligent kiu ho....? ...Megha yadav....hme bhi bta do plzzzz...?

Rohan Kumar 7 years, 2 months ago

Yes u r right Megha...,?

G K 7 years, 2 months ago

Sorry......its brown ring test

G K 7 years, 2 months ago

Briwn ring test

ANSWER

Which is more concentrated 1molar or 1molal solution having same solute?

Posted by Matruprava Das 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

???Why is glass considered as supercooled liquid❔❓❔❓???(IIT JEE ADVANCE 2004).

Posted by Yo Yo Honey Singh ? 7 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Rohan Kumar 7 years, 2 months ago

Jee advanced M itna easy Q. ..??

Kamakshi Dixit 7 years, 2 months ago

bcoz molecules of glass continuously flow in the direction of gravitational force that is why after many year glass of buildings become thicker at bottom and thinner at top

ANSWER

Hoe are the conductivity of crystals affected by schottky and frenkel defects?

Posted by Aastha Sharma 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Mansi Kain 7 years, 2 months ago

In schtky cond decreases and in frenkel remain same

ANSWER

Why are solids containing f-centres paramagnetic??

Posted by Aastha Sharma 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

G K 7 years, 2 months ago

becoz the e- occupying the vacant sites are unpaired......

ANSWER

CH3CH2CH=CH2+HBr------------->

Posted by Manish Kumar 7 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

G K 7 years, 2 months ago

CH3CH2C(Br)H-CH3is product....

G K 7 years, 2 months ago

Markovnikov rule.....

ANSWER

What is a monosacchride

Posted by Laxmi Laxmi 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Mohit Sepat 7 years, 2 months ago

The type of carbohydrate which do not give any product on hydrolysis .

ANSWER

Amino acid show amphoteric behaviour why

Posted by Laxmi Laxmi 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Jyoti Soni 7 years, 2 months ago

Because of its zwitter ion stucture.......it may behave like acid as well as base

ANSWER

Chemistry me sabse hard part kon sa lagta h??? 12th class students......

Posted by Pratibha Ydv 7 years, 2 months ago

CBSE > Class 12 > Chemistry

6 answers

Pratibha Ydv 7 years, 2 months ago

Rexns of inorganic ........??

Rohan Kumar 7 years, 2 months ago

Sb kuch

Anchal Thakur 7 years, 2 months ago

I hate chemistry?

H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 2 months ago

P block, D block and surface chemistry

Mohit Sepat 7 years, 2 months ago

Inorganic chemistry

Laxmi Laxmi 7 years, 2 months ago

Organic chapter

ANSWER

How many optical isomers possible for M(A)BCDEF

Posted by Sahil Rana 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Equilibrium constant (KC) for the given cell reaction is 10. Calculate E°cell. A (s) + B2+ (aq) ↔ A2+(aq) + B(s)

Posted by Shoaib Bhat 7 years, 2 months ago

CBSE > Class 12 > Chemistry

3 answers

We Ayush 7 years, 2 months ago

Apply nernst equation at equilibrium ecell equal to zero

Mohit Sepat 7 years, 2 months ago

How u calculate this

Ayush Parija 7 years, 2 months ago

0.03

ANSWER

Write chemical equation of the reaction. 1) 2methylpropan2ol with vapour passed through copper tube at 573K temperature 2) Butan2ol with alcoholic KOH 3) Ethanol treated with concentration H2SO4 at (a)443K and (b)413K

Posted by Samrat Jaiswal 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Samrat Jaiswal 7 years, 2 months ago

Please answer it quickly

ANSWER

Oxidising power of h2SO4

Posted by Hariom Tiwari 7 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Mohit Sepat 7 years, 2 months ago

Pls tell that how u calculate this

Amandeep Kumar 7 years, 2 months ago

+6

ANSWER

Why para-nitro phenol have higher boiling point than ortho-nitro phenol?

Posted by Samrat Jaiswal 7 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Rohan Kumar 7 years, 2 months ago

?

G K 7 years, 2 months ago

O-nitrophenol undergoes ?INTRAMOLECULAR?Hydrogen bonding (within molecule).....and it can be easily separated during heating since it doesn't have any major interaction with other molecules near by.....hence less bpt.... P-nitrophenol undergoes ?INTERMOLECULAR? Hydrogen bonding...... It interacts with atoms of different molecules near by and increase its boiling point.....

ANSWER

Why alcohol have higher boiling point than alkanes?

Posted by Samrat Jaiswal 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

G K 7 years, 2 months ago

Becoz of presence of hydrogen bonding in alcohol....

ANSWER

What will happen when acetic acid is heated in presence of phosphorus pentaoxide?

Posted by Samrat Jaiswal 7 years, 2 months ago

CBSE > Class 12 > Chemistry

5 answers

Rohan Kumar 7 years, 2 months ago

U r aways ry8 Megha

Aastha Sharma 7 years, 2 months ago

Yes

Ayush Parija 7 years, 2 months ago

Acetic anhydride

Samrat Jaiswal 7 years, 2 months ago

Please be sure

G K 7 years, 2 months ago

I think ...acetic anhydride is formed.....

ANSWER

What will happen when sodium ethanoate will be heated with sodalime?

Posted by Samrat Jaiswal 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

G K 7 years, 2 months ago

CH4 nd Na2CO3 is formed

ANSWER

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