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

As we move from left to right along a transition series, the nuclear change increases which tends to decrease the size but the addition of electrons in third-subshell increases the screening effect which counter balances the effect of increased nuclear charge.

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Avni Choudhary 1 year, 3 months ago

Please answer the questions

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CHCl3 +1/2o2gives

Posted by Vaidik Sati 1 year, 1 month ago

CBSE > Class 12 > Chemistry

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Give reason Haloarenes do not undergo nucleophilic substitution reaction easily.

Posted by Khushi Kumari 1 year, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Vaidik Sati 1 year, 3 months ago

Haloarenes do not go under nucleophilic reaction because of the following reasons: 1- partial double bond character (Resonance effect) 2- unstable phenyl cation

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What is saturated solutions

Posted by Prajwal J 1 year, 4 months ago

CBSE > Class 12 > Chemistry

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Mansi Nautiyal 1 year, 3 months ago

A saturated solution is a solution that contains the maximum amount of solute that can be dissolved under the condition at which the solution exists.

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Yashi Rajvansh 1 year, 3 months ago

Those solutions in which no more solute can be added

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Sandeep Kumar Sing 1 year, 3 months ago

Electrochemistry exercise 3.5

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What does Roylts law tell?

Posted by 11A_50_Jayvardhan Kale 1 year, 4 months ago

CBSE > Class 12 > Chemistry

2 answers

Kritika Kritika 1 year, 4 months ago

Raoult's law states that a solvent's partial vapour pressure in a solution (or mixture) is equal or identical to the vapour pressure of the pure solvent multiplied by its mole fraction in the solution.

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Arpit Singh 1 year, 4 months ago

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Warner theory

Posted by Mayank Pal 1 year, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Chhaya Singh 1 year, 4 months ago

Warner theroy State that 1.Metals possess two types of valencies called primary /ionisable and secondary/non ionisable valency 2.every metal atom has a tendency to satisfy both it's primary and secondary valencies

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Chemistry challenge code :77395092809

Posted by Krrish 1 year, 4 months ago

CBSE > Class 12 > Chemistry

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Chemistry challenge for topper 77395092809

Posted by Krrish 1 year, 4 months ago

CBSE > Class 12 > Chemistry

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From the rate expression for the following reactions,determine their order of reaction and the dimensions of the rate constant. 1.3NO(g) givesN²O(g) Rate=k[NO]²

Posted by Divya Sen 1 year, 4 months ago

CBSE > Class 12 > Chemistry

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What is used to convert ch3oh to ch3i

Posted by Saraswati Jha 1 year, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Jagdeep Singh 1 year, 2 months ago

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Give one use of CHI3

Posted by Bhoomika Kuppelur 1 year, 4 months ago

CBSE > Class 12 > Chemistry

2 answers

Mansi Nautiyal 1 year, 3 months ago

CHI3 is as an antiseptic in agent.

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Kritika Kritika 1 year, 4 months ago

It is used as an antiseptic agent.

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What is unit of rate constant for a reaction of order n

Posted by Shikha Yadav 1 year, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Rani Bose 1 year, 4 months ago

mol^1-n L^ n-1 seconds^-1

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Conversion of benzoyl nitrile from chloro benzene

Posted by Krutarth Patel 1 year, 4 months ago

CBSE > Class 12 > Chemistry

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What is the difference in properties of d and other blocks element

Posted by Gayathri Ramaiyan 1 year, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Sahil Saini 1 year, 4 months ago

D block elements is called transition metal

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Calculate the mass percentage of benzene (c⁶H⁶) and carbon tetrachloride.if 22 gram of benzene is dissolved in 122 gram of carbon tetrachloride

Posted by Aryan Pandey 1 year, 4 months ago

CBSE > Class 12 > Chemistry

1 answers

Manjeet Sharma 1 year, 4 months ago

😊😊😊

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Relative lowering of vapour pressure

Posted by Keshav Kansal 1 year, 4 months ago

CBSE > Class 12 > Chemistry

2 answers

Rani Bose 1 year, 4 months ago

P⁰A - P⁰S / P⁰A = mole fraction of B i.e the mole fraction of solute particle

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Account Deleted 1 year, 4 months ago

Cologative properties ...

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Write nerst eq for the electrode rcm Mn+ +ne- to M at 298K and 1 bar pressure

Posted by Viren Viren 1 year, 4 months ago

CBSE > Class 12 > Chemistry

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Is cbse gives attempt marks or step marks and grace marks in compartment examination

Posted by Krishnpal Singh Rajput 1 year, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Account Deleted 1 year, 5 months ago

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kya board exam me jaise questions puchhe gye h vaise hi Chemistry compartment me questions puchhe jayenge

Posted by Rituraj Kushwaha 1 year, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Account Deleted 1 year, 5 months ago

Yes

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Ethyl chloride to ethyl iodide

Posted by Priya Kumari 1 year, 5 months ago

CBSE > Class 12 > Chemistry

2 answers

Sharan M 1 year, 4 months ago

conversion of ethyl bromide to ethyl iodide using sodium iodide and dry acetone, this reaction is known as Finkelstein reaction. In dry acetone, sodium bromide gets precipitated. CH3CH2Br+NaI ⇄ CH_3CH_2I + NaBrCH3CH2I+NaBr The classic Finkelstein reaction involves the process of an alkyl bromide or an alkyl chloride into an alkyl iodide which is treated with a sodium iodide. Final Answer:- The correct answer is the conversion of ethyl bromide to ethyl iodide using sodium iodide and dry acetone, this reaction is known as the Finkelstein reaction.

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Shanika Sharma 1 year, 4 months ago

The conversion of ethyl bromide to ethyl iodide using sodium iodide and dry acetone, this reaction is known as Finkelstein reaction. In dry acetone, sodium bromide gets precipitated. CH3CH2Br+NaI ⇄ CH_3CH_2I + NaBrCH3CH2I+NaBr The classic Finkelstein reaction involves the process of an alkyl bromide or an alkyl chloride into an alkyl iodide which is treated with a sodium iodide. Final Answer:- The correct answer is the conversion of ethyl bromide to ethyl iodide using sodium iodide and dry acetone, this reaction is known as the Finkelstein reaction.

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Cre created better want a factor first then one greater than one in the following kch3cooh dissolve in water

Posted by Kumari Vaishnavi 1 year, 5 months ago

CBSE > Class 12 > Chemistry