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How to find loan pair of an atom?

Posted by Shubham Prajapati 6 years, 7 months ago

CBSE > Class 12 > Chemistry

2 answers

Kashish Rana 6 years, 7 months ago

To see udaan classes lectures for this

1Thank You

Vishesh Phutela 6 years, 7 months ago

With the help of valance shell electron.

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ANSWER

Is the rate constant feasible which we get at very high temp in the arrhenius equation?

Posted by Charu Bansal 6 years, 7 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Define term valence factor

Posted by Divyanshu Mishra 6 years, 7 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is haloarenes and what is difference between haloalkane

Posted by Sachin Kumar 6 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Antriksh Bohara 6 years, 7 months ago

IN halorenes Ar-X bond is present and haloarenes are those which are formed by substitution of hydrogen from arene by halogen whereas, in haloalkanes C-X bond is present and are formed by substitution of hydrogen from alkane by halogen

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ANSWER

2g each of two solutes A and B ate dissolved separately in 50g each of same solvent. Which will show greater elevation in boiling point?

Posted by Kanisha Dahiya 6 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Sinchana Malagond 6 years, 7 months ago

None will show greater boiling point since the no of solute particle s is same n the solvent is same

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ANSWER

Gases tend to be less soluble in liquids as the temperature is raised. Why.

Posted by Ankit Chauhan 6 years, 7 months ago

CBSE > Class 12 > Chemistry

2 answers

Amol Gùpta 6 years, 7 months ago

Because on heating the gas would move out from that liquid for ex on heating coca cola the co2 gas will get evaporated

1Thank You

Harsh Singh 6 years, 7 months ago

When gases are dissolved in liquid then it is an exothermic process. According to Le Chaterlier's principle, When temperature is raised solubility of gases in liquid decreases.

1Thank You

ANSWER

Why kholrausch law is called law of independent migration?

Posted by Rea Rea 6 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Anshu Priya 6 years, 7 months ago

Because both anion and cation present in the electrolyte contribute to its limiting molar conductivity independently.

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ANSWER

Solid state chap s deleted or not??

Posted by Tanushree Shenoi 6 years, 7 months ago

CBSE > Class 12 > Chemistry

4 answers

Vicky Kumar 6 years, 7 months ago

Yeah it is removed

0Thank You

Manika Gupta 6 years, 7 months ago

It is deleted

0Thank You

Tanushree Shenoi 6 years, 7 months ago

1Thank You

Ankit Gurjar 6 years, 7 months ago

Yes deleted

1Thank You

ANSWER

Which is most preffered guide for chemistry board prep for class12?

Posted by Tanushree Shenoi 6 years, 7 months ago

CBSE > Class 12 > Chemistry

5 answers

Kashish Rana 6 years, 7 months ago

Arihant

0Thank You

Tanushree Shenoi 6 years, 7 months ago

Okk tx

0Thank You

Ashu Baba 6 years, 7 months ago

X am idea and arihant

0Thank You

Vicky Kumar 6 years, 7 months ago

Ncert .....u can go for oswal question bank

0Thank You

Manika Gupta 6 years, 7 months ago

Ncert is mpre than enough but if u want to practice more and more questions and model test papers then u can go for ALL IN ONE

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A solution is prepared by dissolving 8.95mg of a gene fragment in 35.0mL of water has an osmatic pressure of 0.335torr at 25°C. Assume the gene fragment is a non - eletrolyte, determine its molar mass.

Posted by Amrit Kumar 6 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Manika Gupta 6 years, 7 months ago

Use the formula M2 = w2RT/CV

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Why is oxygen mixed with helium used by deep sea divers??

Posted by Shubham Pandey 6 years, 7 months ago

CBSE > Class 12 > Chemistry

2 answers

Shubham Pandey 6 years, 7 months ago

Thanq so much

1Thank You

Manika Gupta 6 years, 7 months ago

Under see solubility of gases incereases due to increase in pressure..thus nitrogen get mixed into our blood and when we come back to surface pressure decreases thus solubility decreases and nitrogen bubble forms which leads to a painful condition called bends..... To insure that bends doesn't takes place non reactive gas helium is fillef

4Thank You

ANSWER

Define the transition temperature in the solubility of a solid in a liquid.

Posted by Shubham Pandey 6 years, 7 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What conversation of nitrogen should be present in a glass of water at room temp ..?assume a temp. Of 29°C a total pressure of 1 atm and mole fraction of nitrogen in air is 0.78 kH for N2 = 8 .42×10-7M/mm hg

Posted by Rishabh Chaudhary 6 years, 7 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is relation between conductivity and conductance?

Posted by Karamjit Singh 6 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Aman Yadav 6 years, 7 months ago

conductivity = conductance ×cell constant

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ANSWER

i m very confused in numericals of chapter 3 solution.....so what i m do ..

Posted by Tanu Chauhan 6 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Jatin Khatri 6 years, 7 months ago

First do solved numericals

1Thank You

ANSWER

what is leaching

Posted by Shrimant Chavan 6 years, 7 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Why aquatic species are more comfortable in cold water than warm water

Posted by Karan Singh 6 years, 7 months ago

CBSE > Class 12 > Chemistry

3 answers

Anjali Singh 6 years, 7 months ago

Beacuse in cold water solubility of oxygen is more than in warm water

0Thank You

Vansh Kumar 6 years, 7 months ago

0Thank You

Gaurav Seth 6 years, 7 months ago

Aquatic species are more comfortable in cold water due to the presence of more oxygen. Solubility of oxygen in water increases with decrease in temperature as solubility of a gas in given liquid decreases with increase in temperature.

2Thank You

ANSWER

What is internal energy

Posted by Aman Raj 6 years, 7 months ago

CBSE > Class 12 > Chemistry

2 answers

Himanshu Shekhar 6 years, 7 months ago

????

1Thank You

Himanshu Shekhar 6 years, 7 months ago

Undroni urjaa

1Thank You

ANSWER

What is formula of acetic acid

Posted by Aman Raj 6 years, 7 months ago

CBSE > Class 12 > Chemistry

2 answers

Gaurav Seth 6 years, 7 months ago

Acetic acid is an organic acid which is the main component of vinegar. It is also called glacial acetic acid, ethanoic acid or methane carboxylic acid. Formula and structure: The chemical formula of acetic acid is CH₃COOH.

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Anshul Mishra 6 years, 7 months ago

Ch3cooh

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ANSWER

Is chapter solid state come in compartment paper

Posted by Harsh Meena 6 years, 7 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Explain claisen condensation with example.

Posted by Gaurish Siwan 6 years, 7 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is pressure?

Posted by Saloni Kumari 6 years, 7 months ago

CBSE > Class 12 > Chemistry

3 answers

Hritik Kumar 6 years, 7 months ago

Force per unit area

0Thank You

Anjali Singh 6 years, 7 months ago

Pressure is the force applied per unit Area

0Thank You

Unknown Villain 6 years, 7 months ago

If 100 students are in a class where 20 students can be, there creates pressure

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ANSWER

Briefly explain the valance bond theory.

Posted by Mynk Kashyap 6 years, 7 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Value of Henry 's constant kh

Posted by Anjali Gautam 6 years, 7 months ago

CBSE > Class 12 > Chemistry

2 answers

Anjali Singh 6 years, 7 months ago

It varies with diffrent gases

0Thank You

Sanchi Yaduvanshi 6 years, 7 months ago

The Henry's contant is different for every gases in his gaseous law...

1Thank You

ANSWER

A solution containing 8g of substance in 100g of diethylether boils at 36.86C where as pure ether boils at 35.60C determines the molecular mass of solute (Kb for ether =2.02kkgmol-1

Posted by Ram Kishor 6 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Unknown Villain 6 years, 7 months ago

T(sol)=36.86C T(solv)=35.60C T(sol)-T(solv)=1.26k ΔTb=Kb×Wsolu×1000÷Msolu×Wsolv Msou=2.202×8×10÷1.26 Mwt=139.80g

1Thank You

ANSWER

Derive the nernst equation for the nickel, silver cell

Posted by Akanksha Sharma 6 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Anshul Mishra 6 years, 7 months ago

Ecell = Ecathode -Eanode Ecell =ENi/Ni+2 -EAg+/ag Ecell° = Ecell - 0.0059/2 log (Ni+2)/(Ag+)2

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ANSWER

Please provide me the solution of examples of ch.2

Posted by Vipin Tyagi 6 years, 7 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

A first order rxn takes 40 min for 30% of decomposition.calculate t half(1/2)

Posted by Taranpreet Kaur 6 years, 7 months ago

CBSE > Class 12 > Chemistry

3 answers

Paniyas Garg 6 years, 7 months ago

t30%=2.303/k log100/70 t30%=40min Find value of K. Put value of K in t1/2=0.693/K You will find the value of t1/2

1Thank You

Taranpreet Kaur 6 years, 7 months ago

Plzz solve

1Thank You

Paniyas Garg 6 years, 7 months ago

Ans=77.7min

1Thank You

ANSWER

Explain boiling point elevation cobstant for a solvent or ebullioscopic constant.

Posted by Ishita Ishita 6 years, 7 months ago

CBSE > Class 12 > Chemistry

3 answers

Taranpreet Kaur 6 years, 7 months ago

Temp.= Temperature Soln= solution

1Thank You

Taranpreet Kaur 6 years, 7 months ago

V.p. = vapour pressure

1Thank You

Taranpreet Kaur 6 years, 7 months ago

The boiling point of a liquid is the temp.at which its v.p. becomes equal to the atmospheric pressure The v.p. of soln containing non volatile solute is less than the solvent . The soln has to be heated to a higher temp.so,that its v.p. becomes = to the atmospheric pressure.

2Thank You

ANSWER

Explain why on addition of 1 mole of NaCl to one litre of water, boiling point of water increases while addition of 1 mole of methyl alcohol to water decreases it's boiling point.

Posted by Taranpreet Kaur 6 years, 7 months ago

CBSE > Class 12 > Chemistry