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 6 years, 1 month ago

To make soap as anticeptic

1Thank You

Riya Rana 6 years, 1 month ago

For imparting its antiseptic property.

3Thank You

Awantika Deora 6 years, 1 month ago

Because of its antiseptical values

2Thank You

ANSWER

Name the questions which are 100percent sure

Posted by Naresh Jaglan 6 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Raman Kant 6 years, 1 month ago

Distinguish test of organic compounds

0Thank You

Shivani Thakur 6 years, 1 month ago

Iupac naming..????

1Thank You

ANSWER

Imp.questiion of paper

Posted by Raj Verma 6 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Shivani Thakur 6 years, 1 month ago

Yupppp?☺???✌✌???

1Thank You

Tapan Pandey?? 6 years, 1 month 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 6 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Shivani Thakur 6 years, 1 month ago

Yssss

0Thank You

Shreya .. 6 years, 1 month ago

It's temperature independent

2Thank You

ANSWER

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

Posted by Jayveer Singh 6 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Riya Rana 6 years, 1 month 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 6 years, 1 month ago

CBSE > Class 12 > Chemistry

4 answers

Tapan Pandey?? 6 years, 1 month 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 6 years, 1 month ago

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

1Thank You

Manjay Jha 6 years, 1 month ago

Haha Tapan!?

1Thank You

Tapan Pandey?? 6 years, 1 month ago

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

2Thank You

ANSWER

anyone Kv ?

Posted by Nishant Kumar 6 years, 1 month ago

CBSE > Class 12 > Chemistry

4 answers

Raman Kant 6 years, 1 month ago

1Thank You

Pushkar Gupta 6 years, 1 month ago

Yes

1Thank You

Nishant Sharma 6 years, 1 month ago

NO?

1Thank You

Lalit Chaudhary 6 years, 1 month 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 6 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Lalit Chaudhary 6 years, 1 month ago

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

0Thank You

ANSWER

Is diagram of electrochemical cells important??

Posted by Sukraj Subba 6 years, 1 month ago

CBSE > Class 12 > Chemistry

3 answers

Gaurav Yadav 6 years, 1 month ago

No i think so

0Thank You

Sankalp Saraswat 6 years, 1 month ago

Everything is imp.

0Thank You

Lalit Chaudhary 6 years, 1 month ago

Yes i think so

0Thank You

ANSWER

Ask some difficult questions??

Posted by Kriti Sharma 6 years, 1 month ago

CBSE > Class 12 > Chemistry

5 answers

Raman Kant 6 years, 1 month ago

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

0Thank You

Nishant Sharma 6 years, 1 month ago

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

0Thank You

Nishant Sharma 6 years, 1 month ago

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

0Thank You

Kriti Sharma 6 years, 1 month ago

Thanks?

2Thank You

Nishant Sharma 6 years, 1 month ago

? ALL THE BEST KRITI! ?

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ANSWER

Log table will be provided ???

Posted by Xyz Abc 6 years, 1 month ago

CBSE > Class 12 > Chemistry

4 answers

Kartik Tyagi 6 years, 1 month ago

Nhi hogi physics k paper ka front page padlo yrr

0Thank You

Shiwangee Gupta 6 years, 1 month ago

Off course

0Thank You

Lalit Chaudhary 6 years, 1 month ago

Yes

0Thank You

Kriti Sharma 6 years, 1 month 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 6 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Kriti Sharma 6 years, 1 month ago

Solid state is not coming?

1Thank You

ANSWER

Colloidal gold is prepared by

Posted by Neha Kumari 6 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Raman Kant 6 years, 1 month ago

Bredig arc method

0Thank You

Kriti Sharma 6 years, 1 month 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 6 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Akhil Kumar 6 years, 1 month ago

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

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Yogita Ingle 6 years, 1 month 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 6 years, 1 month ago

CBSE > Class 12 > Chemistry

9 answers

Nishant Sharma 6 years, 1 month ago

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

0Thank You

Kriti Sharma 6 years, 1 month ago

Thnks?

0Thank You

Nishant Sharma 6 years, 1 month ago

? ALL THE BEST KRITI! ?

0Thank You

Nishant Sharma 6 years, 1 month ago

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

0Thank You

Nawab Shaykh 6 years, 1 month ago

What type of metals are generally extracted by electrolytic method?

0Thank You

Nishant Sharma 6 years, 1 month ago

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

1Thank You

Rajat Barwar 6 years, 1 month ago

Yes , ur prep. level pata lag gaya.

4Thank You

Kriti Sharma 6 years, 1 month ago

Ans....convulsions?

0Thank You

Rajat Barwar 6 years, 1 month 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 6 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Aditya Gautam 6 years, 1 month ago

Best of luck Have a blast ✌️✌️✌️

1Thank You

Varsha Sharma 6 years, 1 month ago

U too????

1Thank You

ANSWER

What is daniel cell? Explain in briefly

Posted by Nawab Shaykh 6 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Kriti Sharma 6 years, 1 month 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 6 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is role of diffusion in heterogeneous catalysis

Posted by Mc Dayananda 6 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Yogita Ingle 6 years, 1 month 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 6 years, 1 month 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 6 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Tamanna Sharma 6 years, 1 month 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 6 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Nishant Kumar 6 years, 1 month ago

molarity decreases with increase in temp!

0Thank You

Tamanna Sharma 6 years, 1 month 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 6 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Why phenol undergoes electrophilic substitution more easily than benzene?

Posted by Akhil Kumar 6 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Shreya .. 6 years, 1 month 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 6 years, 1 month ago

CBSE > Class 12 > Chemistry

4 answers

Kriti Sharma 6 years, 1 month 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 6 years, 1 month ago

Krti krwa do n

0Thank You

Varsha Tripathy 6 years, 1 month ago

Haa

0Thank You

Ahmad Kashan Zain 6 years, 1 month ago

are yaar kriti tez ladki has kya☺

0Thank You

ANSWER

General principal also

Posted by Aryan Ruhal 6 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

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

Posted by Aryan Ruhal 6 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Tamanna Sharma 6 years, 1 month 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 6 years, 1 month ago

CBSE > Class 12 > Chemistry