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Identify the cation and anion in a given salt : 1.physical characteristics of salt. 2.dry and wet test for cation 3.dry and wet test for anion 4.confirmatory test for anion and cation

Posted by Shashi Raj 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Shashi Raj 6 years, 11 months ago

And plz

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Define ionic solids

Posted by Kartik Choudhary 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Gopal Ji Mishra 6 years, 11 months ago

the solids which are bounded by ionic bond

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All 50 naming reaction

Posted by Abhi Pathak 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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All naming reaction

Posted by Abhi Pathak 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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Which of them will act faster in SN2 mechanism chlorobenzene or phenyl chloromethane?

Posted by Maniska Das 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Aditi Bhat 6 years, 11 months ago

I think phenylchloromethane.....because the breaking of bond b/w Cl and C is relatively easier than breaking the C-Cl bond in chlorobenzene due to its partial double bond character.

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Actinides show more no of oxidation states than lanthanides why?

Posted by Ruhi S 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Navya Singh 6 years, 11 months ago

Due to small energy gap in 7s 5f nd 6d orbitals

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1 Eu2+ is stronger reducing agent ..why ? 2 MnO is basic while Mn2O7 is acidic .why ? 3 d1 is very unstable . Why ?

Posted by Navya Singh 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Ionisation enthalpy of lanthanids is higher than actinides why?

Posted by Ruhi S 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Maniska Das 6 years, 11 months ago

Due to effective shielding of 6F electrons than 4F electrons (outer electrons are loosely held.)

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Transition elements show highest oxidation states in their oxides than fluorides

Posted by Ruhi S 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Aditi Bhat 6 years, 11 months ago

This is because oxygen is capable of multiple bond formation and its electron cloud is more dispersed than fluorine due to which it offers less steric hinderance

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How to calculate freezing point

Posted by Abhishek Vaishnav 6 years, 11 months ago

CBSE > Class 12 > Chemistry

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Most important topics of chemsitry class 12th chapter wise plzz send

Posted by Kushal Dobhal 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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What is the difference btw co-polymer and homo polymer

Posted by Dev Thakur 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

H!Mαη$Hμ Ұαδαυ ✔️ 6 years, 11 months ago

Homopolymer is made up of only one type of monomer...........copolymer is made of different monomers..

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What will the major product formed when 4-ethyl nitrobenzene is treated with Br2 in the presence of sunlight

Posted by Bhagatsingh Malik 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

H!Mαη$Hμ Ұαδαυ ✔️ 6 years, 11 months ago

4-(1-bromo) ethyl nitrobenzene

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Why FCl3 doesnot exist?

Posted by Kshitij Bajpai 6 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Kshitij Bajpai 6 years, 11 months ago

Sorry but atleast i know that Cl is bigger in size than F

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Shaima Ameen 6 years, 11 months ago

FCl3 does not exist because: 1.both are electronegative ions 2.there is difference in size.chlorine has smaller size and flourine has bigger size so bond formed bw them is not strong and it does not exist

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Explain-alkyl halides are generally not prepared in the lab by free radical halogenation of alkanes

Posted by Vishi Bhati 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Sunandan Sharma 6 years, 11 months ago

Because carbon-oxygen bond in phenols have a partial fouble bond character and is so difficult to break

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value based question is coming in 2019 board exam??

Posted by Ruhi Ashish Malhotra 6 years, 11 months ago

CBSE > Class 12 > Chemistry

5 answers

Kalas Sahu 6 years, 11 months ago

No at all

2Thank You

Tannu Sehwag 6 years, 11 months ago

1Thank You

Lavanya Balasubramanian 6 years, 11 months ago

1Thank You

Rishabh Luhach 6 years, 11 months ago

1Thank You

Gaurav Binjola 6 years, 11 months ago

Yes

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Can any one tell me what to take after 10th

Posted by Anwaya Kumar Nayak 6 years, 11 months ago

CBSE > Class 12 > Chemistry

4 answers

Mansi Sharma 6 years, 11 months ago

I think that PCM is best ???

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H!Mαη$Hμ Ұαδαυ ✔️ 6 years, 11 months ago

Science is awesome

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Tushar Yadav 6 years, 11 months ago

Its all about your intrest

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Jagjot Kaur 6 years, 11 months ago

It's your choice based on your interest in subjects

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Write a chemical equation for the preparation of phenol from benzene using oleum and sodium hydroxide

Posted by Kiran Kapil 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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What is the relation between normality and molarity, equivalent mass and molecular mass?

Posted by Anjali Thakut 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Robins Kumar Dinkar 6 years, 11 months ago

Normality =molarity ×n-factor Eq. Mass=molar mass/n-factor

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What is lattice site???

Posted by Shubhankar Kumar 6 years, 11 months ago

CBSE > Class 12 > Chemistry

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What is cause of adsorption

Posted by Harshit Bhagat 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Yogita Ingle 6 years, 11 months ago

Adsorption is caused by London Dispersion Forces, a type of Van der Waals Force which exists between molecules. The force acts in a similar way to gravitational forces between planets.

London Dispersion Forces are extremely short ranged and therefore sensitive to the distance between the carbon surface and the adsorbate molecule. They are also additive, meaning the adsorption force is the sum of all interactions between all the atoms. The short range and additive nature of these forces results in activated carbon having the strongest physical adsorption forces of any material known to mankind.

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Ethyl cyanide to ethanol

Posted by Kunal Singh 6 years, 11 months ago

CBSE > Class 12 > Chemistry