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

Positive - when solute -solute interaction nd solvent- solvent interaction is more than solute solvent interaction Negative- when solute solute nd solvent solvent interaction is less than solute solvent interaction

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Whole year I haven't studied chemistry how to study in these days ? What should be the strategy to study ? Please tell me

Posted by Ishu Chouhan 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

English : kisi ko debate ka format pata hai to bata do........

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Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

Dekho ab ya to lag jaaoo ya for chod do .........baaki subjects ghol ke pee jaooo............

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Cholrobenzene to phenol

Posted by Shivanshu Yadav 8 years, 1 month ago

CBSE > Class 12 > Chemistry

12 answers

Shivanshu Yadav 8 years, 1 month ago

Bto yr

1Thank You

Shivanshu Yadav 8 years, 1 month ago

Join kia kya

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Aisha Grewal 8 years, 1 month ago

Not today kl pkka.join kr luga .... God promise..... ?????????⌛⏳

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Aisha Grewal 8 years, 1 month ago

Sorry

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Aisha Grewal 8 years, 1 month ago

OK......

1Thank You

Shivanshu Yadav 8 years, 1 month ago

Shivanshu yaduvanshi nam se hu us app pe

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Aisha Grewal 8 years, 1 month ago

Tu agya h kya uss app p...... Bol

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Aisha Grewal 8 years, 1 month ago

OK... ???

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Vishal Singh 8 years, 1 month ago

Naoh se ho jaiyaga

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Shivanshu Yadav 8 years, 1 month ago

M clear kr rha tha ki mera shi h k nhi

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Aisha Grewal 8 years, 1 month ago

Noah k sath nai ho jayegi kya y

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Aisha Grewal 8 years, 1 month ago

????

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How to study questions from p-block and metallurgy??

Posted by Srivathsan Murali 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Amarvir Amarvir 8 years, 1 month ago

fst of all revise all reasoning que and then chemicals reactions. waitage is of reasoning questions and principles in metallurgy

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Why d1 configuration is unstable in ions?

Posted by Deeksha Bhagwat 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Radhika Tyagi 8 years, 1 month ago

On the loss of one electron ions attain stability therefore d1 configuration is unstable in ions.

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Why reduction of cr3+/cr2+ is easier than fe3+/fe2+ and fe3+/fe2+is easier than mn3+/mn2+?

Posted by Deeksha Bhagwat 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

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Why transition elements and many of their compounds act as good catalyst?

Posted by Deeksha Bhagwat 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Radhika Tyagi 8 years, 1 month ago

They have large surface areas thereby behaving as good absorbants. Also they have empty d-orbital which can easily accept electrons.

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Why reduction potential value for cu is positive

Posted by Deeksha Bhagwat 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Radhika Tyagi 8 years, 1 month ago

Bcz of high enthalpy of atomisation and high ionisation enthalpy

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Why reduction potential value for Cuddles is positive?

Posted by Deeksha Bhagwat 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Why co removes from habers process

Posted by Punit Jaat 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Radhika Tyagi 8 years, 1 month ago

Bcz it acts as a poison in the habers process thereby reducing the rate of the reaction.

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Drunken driver test

Posted by Unique Person Arupitw 8 years, 1 month ago

CBSE > Class 12 > Chemistry

14 answers

Aisha Grewal 8 years, 1 month ago

Ab b preshaan hii kr rha h

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Aisha Grewal 8 years, 1 month ago

May be breakup

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Unique Person Arupitw 8 years, 1 month ago

Unka problem solve out hua yaa nahi

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Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

Koi bewkoof hi hoga jo itna time lagake divya ko pareshaan kar raha hai........

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Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

Sab traffic police ko eek botal K2Cr2O7 pakada do??

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Aisha Grewal 8 years, 1 month ago

Yar... Ek bat h y Jo b Divya m confusion create krne wala h na.... Bhot minded h......... Kamina ya kamini

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Unique Person Arupitw 8 years, 1 month ago

So easy test ???

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Unique Person Arupitw 8 years, 1 month ago

That's all

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Unique Person Arupitw 8 years, 1 month ago

In this test a person is asked to breathe into the acidified k2cr2o7 .if the orange colour of k2cr2o7 solution changes into green colour due to CR2(so4)3 ,the person consumed alcohol otherwise not

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Unique Person Arupitw 8 years, 1 month ago

About drunken driver test

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Aisha Grewal 8 years, 1 month ago

Then what u think

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Unique Person Arupitw 8 years, 1 month ago

1Thank You

Aisha Grewal 8 years, 1 month ago

Confused h na

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Aisha Grewal 8 years, 1 month ago

???????

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What is effective electrolyte

Posted by Tanborlang Sohshang 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Radhika Tyagi 8 years, 1 month ago

It is a strong electrolyte which completely ionizes or dissociates in a solution.

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How can we arrange the amines in increasing order of their solubility

Posted by Rohit Bisht 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

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Calculate 2/3 life of 1st order reaction in which k is 0000000000000548

Posted by Dilpreet Chahal 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

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How to find out the van't Hoff factor of a complex compound?

Posted by Mohammed Qasim 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is chromyl chloride test

Posted by Lalit Sh 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Sathya Subbarayan 8 years, 1 month ago

It is the test to check the presence of chloride ion in the given salt Salt is added to potassium dichromate with conc.sulphuric acid and heated in a test tube If reddish orange vapours are seen then chloride ion is present if not then absent

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How is the variability in oxidation state s of transition metals different from that of the non transition metals?

Posted by Lalit Sh 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

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(+-)2butanol is optically active or inactive

Posted by Abhinav Tivari 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Sparsh Anand 8 years, 1 month ago

Active

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What is invert sugar???

Posted by Cicil George 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Sparsh Anand 8 years, 1 month ago

Sucrose As it is dextrorotatory But The product mixture obtained on hydrolysis is leavorotatory

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What is adol condensation

Posted by Sourav Jindal 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Hitesh Kumar 8 years, 1 month ago

an organic reaction in which enolate ion reacts with a carbonyl compound to form β-hydroxyketone or β-hydroxyaldehyde, followed by a dehydration to give a conjugated enone

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What is brown ring test??..bata do yrr exam me ane wala h...itna dar mjhse acha nhi h??

Posted by Vithika Singh 8 years, 1 month ago

CBSE > Class 12 > Chemistry