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

Bithional is added to soaps because due to decomposition of bacteria on the body there will be a bad odour coming from the body hence to overcome that bithional at deodorant...?

1Thank You

Santosh Kumar 5 years, 9 months ago

To make soap as anticeptic

1Thank You

Riya Rana 5 years, 9 months ago

For imparting its antiseptic property.

3Thank You

Awantika Deora 5 years, 9 months ago

Because of its antiseptical values

2Thank You

ANSWER

Name the questions which are 100percent sure

Posted by Naresh Jaglan 5 years, 9 months ago

CBSE > Class 12 > Chemistry

2 answers

Raman Kant 5 years, 9 months ago

Distinguish test of organic compounds

0Thank You

Shivani Thakur 5 years, 9 months ago

Iupac naming..????

1Thank You

ANSWER

Imp.questiion of paper

Posted by Raj Verma 5 years, 9 months ago

CBSE > Class 12 > Chemistry

2 answers

Shivani Thakur 5 years, 9 months ago

Yupppp?☺???✌✌???

1Thank You

Tapan Pandey?? 5 years, 9 months ago

Tell you today's noon so... good luck

1Thank You

ANSWER

State the main advantage of molality over molarity as the unit of concentration

Posted by Jayveer Singh 5 years, 9 months ago

CBSE > Class 12 > Chemistry

2 answers

Shivani Thakur 5 years, 9 months ago

Yssss

0Thank You

Shreya .. 5 years, 9 months ago

It's temperature independent

2Thank You

ANSWER

Explaim the Henry's law about dissolution of gas in a liquid

Posted by Jayveer Singh 5 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Riya Rana 5 years, 9 months ago

Henry's law states that that the mass of the gas soluble in liquid in the given volume at a particular constant temperature is proportional to the partial pressure applied. Which simply means higher the pressure, higher will be the solubility.

1Thank You

ANSWER

anyone have tommorows paper question ?

Posted by Ram J 5 years, 9 months ago

CBSE > Class 12 > Chemistry

4 answers

Tapan Pandey?? 5 years, 9 months ago

Ha....... saale........... ek toh papr dene me band bj rhi aur ye chah rahe ki paper leak ho taki ek baar phir ye din dekhne ko mile...........

0Thank You

Shashi Shekhar 5 years, 9 months ago

Not bad?????????????

1Thank You

Manjay Jha 5 years, 9 months ago

Haha Tapan!?

1Thank You

Tapan Pandey?? 5 years, 9 months ago

Yeah..... I have .... I will send it to you tomorrow noon ........ OKAY ?

2Thank You

ANSWER

anyone Kv ?

Posted by Nishant Kumar 5 years, 9 months ago

CBSE > Class 12 > Chemistry

4 answers

Raman Kant 5 years, 9 months ago

1Thank You

Pushkar Gupta 5 years, 9 months ago

Yes

1Thank You

Nishant Sharma 5 years, 9 months ago

NO?

1Thank You

Lalit Chaudhary 5 years, 9 months ago

Yes

2Thank You

ANSWER

Its 9:50pm of 6 march . I havent done physical Chemistry Numericals . Any important ones which i can do tonight ?

Posted by Paranjay Singh 5 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Lalit Chaudhary 5 years, 9 months ago

Ncert ki back exercise mein hai vo kr le...

0Thank You

ANSWER

Is diagram of electrochemical cells important??

Posted by Sukraj Subba 5 years, 9 months ago

CBSE > Class 12 > Chemistry

3 answers

Gaurav Yadav 5 years, 9 months ago

No i think so

0Thank You

Sankalp Saraswat 5 years, 9 months ago

Everything is imp.

0Thank You

Lalit Chaudhary 5 years, 9 months ago

Yes i think so

0Thank You

ANSWER

Ask some difficult questions??

Posted by Kriti Sharma 5 years, 9 months ago

CBSE > Class 12 > Chemistry

5 answers

Raman Kant 5 years, 9 months ago

What sense roses r for?Is CBSE looking to (fhul)fool us?

0Thank You

Nishant Sharma 5 years, 9 months ago

IN YOU FREQUENT ANSWERS YOU HAD NOT USED THIS ?EMOJI! YOU FORGOT OR JUST STOPPED USING IT?????

0Thank You

Nishant Sharma 5 years, 9 months ago

?DON'T MIND THIS BUT I WANTED TO ASK DO YOU LIKE ROSES??

0Thank You

Kriti Sharma 5 years, 9 months ago

Thanks?

2Thank You

Nishant Sharma 5 years, 9 months ago

? ALL THE BEST KRITI! ?

0Thank You

ANSWER

Log table will be provided ???

Posted by Xyz Abc 5 years, 9 months ago

CBSE > Class 12 > Chemistry

4 answers

Kartik Tyagi 5 years, 9 months ago

Nhi hogi physics k paper ka front page padlo yrr

0Thank You

Shiwangee Gupta 5 years, 9 months ago

Off course

0Thank You

Lalit Chaudhary 5 years, 9 months ago

Yes

0Thank You

Kriti Sharma 5 years, 9 months ago

Yes

0Thank You

ANSWER

Silver crystallaisesin FCC unitcell with adensityof 10.5 gcm-3 having atomic mass 108uthen calculates the edges length of cell

Posted by Subhasmita Jena 5 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Kriti Sharma 5 years, 9 months ago

Solid state is not coming?

1Thank You

ANSWER

Colloidal gold is prepared by

Posted by Neha Kumari 5 years, 9 months ago

CBSE > Class 12 > Chemistry

2 answers

Raman Kant 5 years, 9 months ago

Bredig arc method

0Thank You

Kriti Sharma 5 years, 9 months ago

It is prepared by boiling a solution of tetra chloro auric acid with a reducing agent?

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ANSWER

What Is Isobars?

Posted by Ashmit Nishad 5 years, 9 months ago

CBSE > Class 12 > Chemistry

2 answers

Akhil Kumar 5 years, 9 months ago

The elements which have same mass but diff. atomic no. are called isobars.

0Thank You

Yogita Ingle 5 years, 9 months ago

Isobar is that element which differs in the chemical property but has the same physical property. So, we can say that isobars are those elements which have a different atomic number but the same mass number. Their chemical property is different because there is a difference in the number of electrons. It has the same atomic mass but different atomic no. Because an additional number of neutrons compensates the difference in the number of nucleons.

Example:

⁴⁰S, ⁴⁰Ar, ⁴⁰Ca. ⁴⁰Cl, and ⁴⁰K.

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ANSWER

Ask some difficult questions?

Posted by Kriti Sharma 5 years, 9 months ago

CBSE > Class 12 > Chemistry

9 answers

Nishant Sharma 5 years, 9 months ago

?REVISE REACTIONS AND IMP. DEFINITIONS AND SLEEP ON TIME.WILL HELP YOU A LOT?

0Thank You

Kriti Sharma 5 years, 9 months ago

Thnks?

0Thank You

Nishant Sharma 5 years, 9 months ago

? ALL THE BEST KRITI! ?

0Thank You

Nishant Sharma 5 years, 9 months ago

AMONG MN^3+, V^3+, CR^3+, TI^4+, IONS WHICH ION IS COLOURLESS? :) ????

0Thank You

Nawab Shaykh 5 years, 9 months ago

What type of metals are generally extracted by electrolytic method?

0Thank You

Nishant Sharma 5 years, 9 months ago

WHAT HAPPENS WHEN SILVER NITRATE SOLUTION IS ADDED TO POTASSIUM IODIDE SOLUTION?

1Thank You

Rajat Barwar 5 years, 9 months ago

Yes , ur prep. level pata lag gaya.

4Thank You

Kriti Sharma 5 years, 9 months ago

Ans....convulsions?

0Thank You

Rajat Barwar 5 years, 9 months ago

Disease caused due to deficiency of vitamin B6??

1Thank You

ANSWER

Thank you for for all the help and instant replies.All the very best chemistry ki mistery solve karne waaloon! Rab meher kare?? Have a peaceful sleep!

Posted by Manjay Jha 5 years, 9 months ago

CBSE > Class 12 > Chemistry

2 answers

Aditya Gautam 5 years, 9 months ago

Best of luck Have a blast ✌️✌️✌️

1Thank You

Varsha Sharma 5 years, 9 months ago

U too????

1Thank You

ANSWER

What is daniel cell? Explain in briefly

Posted by Nawab Shaykh 5 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Kriti Sharma 5 years, 9 months ago

It is the simplest type of electrochemical cell in which zinc rod is placed in a solution of zn S o4 and copper metal is immersed in a solution of copper sulphate the two metals are connected by metallic wire and by inverted U tube containing Semi solid paste of either Potassium Chloride or ammonium chloride this arrangement is called Salt Bridge as a result of two half cell reaction Zinc metal dissolves in endnote solution as the reaction progresses copper begins weight where is zinc rod loses weight since electrons are released at anode it requires negative polarity and cathode becomes positive because it needs electrons of the reduction positive ions

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ANSWER

What are ketosis

Posted by Rahul Kumar 5 years, 9 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is role of diffusion in heterogeneous catalysis

Posted by Mc Dayananda 5 years, 9 months ago

CBSE > Class 12 > Chemistry

2 answers

Yogita Ingle 5 years, 9 months ago

Diffusion of gas molecules occur at the surface of catalyst (solid) followed by adsorption. In the same way, the product formed diffuse from the surface of the catalyst leaving the - surface free for more reactant molecules to get adsorbed and undergo reaction.

0Thank You

Tamanna Sharma 5 years, 9 months ago

After completing rxn to get back catalyst and product formed

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ANSWER

Is time pr previous year solve krna thik hoga kya

Posted by Varsha Tripathy 5 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Tamanna Sharma 5 years, 9 months ago

Yes ,

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ANSWER

Differentiate between molality and molarity of a solution. What is the effect of change in temperature of a solution on its molality and molarity?

Posted by Experience Gaming 5 years, 9 months ago

CBSE > Class 12 > Chemistry

2 answers

Nishant Kumar 5 years, 9 months ago

molarity decreases with increase in temp!

0Thank You

Tamanna Sharma 5 years, 9 months ago

Bahi kal exam he ye to solution ka basic he ,,,m no of moles of solute per Kg of solvent...no temperature effect. M no of moles of solute per LITRE of solution...as volume affected by temperature them M also affected

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ANSWER

KIRTI PLEASE REVISE OUT SURFACE CHEMISTRY AND GENERAL PRINIPLE .I UNDERSTAND U IN DEPTH??U ARE AMAZING ....MAY YOU HELP ME

Posted by Aryan Ruhal 5 years, 9 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Why phenol undergoes electrophilic substitution more easily than benzene?

Posted by Akhil Kumar 5 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Shreya .. 5 years, 9 months ago

OH grp attached to benzene increases electron density on ring which helps electrophile to attack easily

2Thank You

ANSWER

Kriti electrochemistry ka v revision waise hi krwa do plzzzzzzz Thanx a lot for biomolecules Plzzzz electro ka v krwa do behn

Posted by Varsha Tripathy 5 years, 9 months ago

CBSE > Class 12 > Chemistry

4 answers

Kriti Sharma 5 years, 9 months ago

Electrochemistry important topic ohms.law ........you know it .......conductance just the reciprocal of resistance........ how we measure conductance by wheatstone Bridge method is important ........molar conductivity which is the conducting power of all the ions produced by dissolving one gram mole of an electrolyte between electrodes placed 1 cm apart .......limiting molar conductivity.......when concentration approaches zero you must remember kohlraush law and its application........ Daniel cell very important....... the use of Salt Bridge which is basically UTube joining the the circuit filled with KCL agor agor jelly........ but remember it doesn't mean that we can use anything inside Salt Bridge .......the mobility of both anions and cations should be same ........ it is obvious whenever we have to measure anything we use a standard .........similarly to measure electrode potential we use a standard which is called standard hydrogen electrode if conditions are 1m concentration temperature at 298 Kelvin 1 bar pressure........ how to measure cell potential and go through nurst equation .......Faraday's law very very important ...........the amount of any substance liberated at the electrode is directly proportional to the quantity of electricity passing through the electrolyte very easy........ remember dry cell ...............Mercury cell......... fuel cell corrosion .....galvanisation

0Thank You

Varsha Tripathy 5 years, 9 months ago

Krti krwa do n

0Thank You

Varsha Tripathy 5 years, 9 months ago

Haa

0Thank You

Ahmad Kashan Zain 5 years, 9 months ago

are yaar kriti tez ladki has kya☺

0Thank You

ANSWER

General principal also

Posted by Aryan Ruhal 5 years, 9 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Surface chemistry revision kirti please I really understand your words in deep

Posted by Aryan Ruhal 5 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Tamanna Sharma 5 years, 9 months ago

Jo notes pura sall banaye he un bar focused raho, or vaise bhi kal paper hai aur l think revision abb tak to tumne kar hi le hoge , best of luck for tomorrow ???

1Thank You

ANSWER

How to predict vont hoff factor i ? Plzz tell me fast

Posted by Varsha Tripathy 5 years, 9 months ago

CBSE > Class 12 > Chemistry