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What are the 3main conditions for resonance?

Posted by Ankush Thakur 8 years ago

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The contributing structure should have same atomic positions. The contributing structures should have same number of unpaired electrons The contributing structure should have nearly same energy

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Explain vader waal force

Posted by Babar Hussain 8 years ago

CBSE > Class 11 > Chemistry

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Write a balanced chemical equation how gypsum is used for the conversion of ammonia into ammonium sulphate without using H2SO4...

Posted by Aastha Nezi 8 years ago

CBSE > Class 11 > Chemistry

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Which oxide of carbon is malonic acid

Posted by Bhumika Gambhir 8 years ago

CBSE > Class 11 > Chemistry

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Divyanshu Gupta 8 years ago

C3H4O4

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Co2 is a gas while sio2 is solid. Why

Posted by Sona Trivedi 8 years ago

CBSE > Class 11 > Chemistry

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What is the component of sublimation

Posted by Khushbu Suthar 8 years ago

CBSE > Class 11 > Chemistry

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Calculate the enthalpy of formation of acetic acid if its enthalpy of combustion is -867kJ. The enthalpies of formation of CO2 and H2Oare --393 & -285.9kJ per mole respectively.

Posted by Prabhpreet Chaudhary 8 years ago

CBSE > Class 11 > Chemistry

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What do you mean by jessiquens law

Posted by Inus Miya 8 years ago

CBSE > Class 11 > Chemistry

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Why electronegativity increases from top to bottom in the case of Ga and Tl

Posted by Harsh Rathore 8 years ago

CBSE > Class 11 > Chemistry

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What is salt hydrolysis..??

Posted by Prakhar Singh 8 years ago

CBSE > Class 11 > Chemistry

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Amar Kumar 8 years ago

Salt Hydrolysis:- Hydrolysis is a reaction involving the breaking of a bond in a molecule using water. The reaction mainly occurs between an ion and water molecules and often changes the pH of a solution. There are three main types of hydrolysis: salt hydrolysis, acid hydrolysis, and base hydrolysis.The cations or anions formed during ionization of salts either exist as hydrated ions in aqueous solutions or interact with water to regenerate the acids and bases. The process of interaction between cations or anions of salts and water is known as hydrolysis of salts.

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What is common ion effect.??

Posted by Prakhar Singh 8 years ago

CBSE > Class 11 > Chemistry

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Àñshul Shärmã 8 years ago

It is the effect when anion is added to equilibrium mixture from external sources

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Why except lithium in group 1 elements do not form hydrated ions

Posted by Laxmi Rani 8 years ago

CBSE > Class 11 > Chemistry

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Abcd Xyz 8 years ago

Bcoz lithim has very small size as compared to all other elements... and positive charge is dispersed in small area thats why lithim only forms hydrated ions in group 1 elements

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How to know about the types of hybridisation

Posted by Vivek Kushwaha 8 years ago

CBSE > Class 11 > Chemistry

2 answers

Abcd Xyz 8 years ago

Steric no. = valence electrons +monovalently bonded atoms+negative charge-positive charge -------------------------------------------------------------------------------------- 2 If steric no. Is 1 sp 2_sp2 3 sp3 4 sp3d So on

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Mansi Gupta 8 years ago

Hybridisation is of three types sp ,sp2,sp3 In sp hybridisation triple bond is present. In sp2 hybridisation double bond is present. In sp3 hybridisation single bond is present.

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How to solve the numericals of ionic equilibrium?

Posted by Nikhil Mishra 8 years ago

CBSE > Class 11 > Chemistry