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Ionic solids condyct electricity in molten state but not in solid state . Explain

Posted by Nisha Soren 6 years, 11 months ago

1 answers

Anki Kaushik 6 years, 11 months ago

Because in molten state ion dissociate to give free ions and hence conduct electricity but in solid state as ions are not free and held by strong electrostatic forces of attraction so, they not conduct electricity.

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An aqueous blue coloured solutions of transition metal sulphate react with H2S in acidic medium to give a black ppt A which is insoluble in warm aqueous solution of KOH. The blue solutions on treatment with KI in weakly acidic medium turn yellow and white pptB. Identify the Transition metal ion. Write the chemical reaction involved in the formation of A and B

Posted by Rishi Singh 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

C6H5oNa common name

Posted by Md Shahzad 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Kapil Dalal 6 years, 11 months ago

Sodium phenoxide

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An element crystallises in a fcc lattice with cell edge of 250pm. calculate the density if 300 g of this element contain 2×10^24atoms

Posted by Akshita Tank 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

About complex compound

Posted by Vijay Sahu 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Robins Kumar Dinkar 6 years, 11 months ago

*shown by mostly d-block elements *show paramagnetism and dimagnetism *coloured compound *most of them do not dissociate to give ions *use in medicines *e.g.chlorophyll is complex form

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ANSWER

F_centre

Posted by Dilsad Soni 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Ramu Kumar 6 years, 11 months ago

IT IS AN ANION VACANCY CAUSED BY SHARED PAIR OF ELECTRONS

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what does 0.2m solution of urea represent?

Posted by Aman Kaur 6 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Sangitaben Patel 6 years, 11 months ago

If by ' m' u mean molalitu then it means that 0.2 moles of urea is present in 1 kg of solvent( any solvent)

1Thank You

Yash Rojaria 6 years, 11 months ago

Nothing

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Important sums for 2019

Posted by Rîshi Kàrthìck 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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What is the hybirdisation of trioxalatocobalt(+3)complex?

Posted by Akash Bajaj 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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Why liCl crystal appears pink instead of white?

Posted by Rachit Bhardwaj 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Tarun Bhati 6 years, 11 months ago

Due to excess metal defect

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Write down the chemical reaction for decarboxylation reaction?

Posted by Rachit Bhardwaj 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Akash Bajaj 6 years, 11 months ago

RCOONa+NaOH------Cao------>RH+Na2CO3

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Descent of series 1.Ethanoic acid to methyl amine.Give me the correct reaction??

Posted by Nitesh Yadav 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Akash Shahi 6 years, 11 months ago

Presence of NaN3 + H2SO4 CH3COOH + NaN3 + H2SO4 -------> CH3NH2 + CO2 + N2

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Why is Eu^(+2) a good reducing agent although it has 4f^7 configuration which is stable. So why would it loose e-?

Posted by Aditi Bhat 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Can a reaction have zero activation energy

Posted by Prachi Saini 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Sangitaben Patel 6 years, 11 months ago

No a reaction can never have 0 activation energy....it is practically not possible....even exothermic reactions have some minimum activation energy

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Please provide blueprint

Posted by Awadhesh Mishra 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Aryan Bhardwaj 6 years, 11 months ago

go to google and search cbse blueprint

1Thank You

ANSWER

Structure of alpha methoxypropionaldehyde

Posted by Anjali Tripathi 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Try to convert Chloroform to diazonium salt.

Posted by Shushma Maurya 6 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Shushma Maurya 6 years, 11 months ago

No it is not possible by kolbes reaction

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Arpit Choubey 6 years, 11 months ago

Kolbe's reaction se ye conversion complete hojayega

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What happens when alcohol is treated with 1.mild oxidizing agent 2.strong oxidizing agent?

Posted by Kshitij Bajpai 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Danush Sk 6 years, 11 months ago

1.With mild it forms aldehyde for primary alcohol and ketone for secondary alcohol. 2.With strong it forms carboxylic acid.

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What is sandmeyer reaction

Posted by Shruti Netam 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Danush Sk 6 years, 11 months ago

It is reaction used to convert diazonium salt into arylhalide and arylcyanide by adding Cu2X2 /HX and CuCN/KCN.(X is halide).

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How to convert Acetophenone to Acetaldehyde

Posted by Priyanshu Shahi 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Danush Sk 6 years, 11 months ago

Acetophenone on oxidizing with strong oxidizing agent it forms CH3COOH and reducing it with LiAlH4 it forms ethanol and by reducing it with CrO3 it forms acetaldehyde.

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Where can i get help in practicles of chemistry

Posted by Pratik Singh 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Robins Kumar Dinkar 6 years, 11 months ago

Search for "cbse practical physics or chemistry"

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ANSWER

Monomers of bakelite?

Posted by Rahul Kumar Choudhary 6 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Aryan Bhardwaj 6 years, 11 months ago

Phenol

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Mansi Gupta 6 years, 11 months ago

Monomers of bakelite is phenol and formaldehyde

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Calculate the overall order of a reaction which has the rate expression Rate =K [A]² [B]¹

Posted by Rahul Bara 5 years, 8 months ago

CBSE > Class 12 > Chemistry

3 answers

Kalas Sahu 6 years, 11 months ago

Overall order of reaction =2+1=3

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Deepak Jindal 6 years, 11 months ago

Order of reaction=2+1=3

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Amod Tripathi 5 years, 8 months ago

2+1=3

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How to study organic⊙_⊙¿ In one day@_@

Posted by Tannu Sehwag 6 years, 11 months ago

CBSE > Class 12 > Chemistry

4 answers

Nikhil Sachdeva 6 years, 11 months ago

Only solve last 3 years paper with solutions

2Thank You

Prasoon Srivastava 6 years, 11 months ago

It's possible by reading only NCERT book

2Thank You

Satyam Singh 6 years, 11 months ago

Can be

1Thank You

Shaniya Singh 6 years, 11 months ago

,it is not possible to study organic in one day

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What is structure of cyclic guucose?

Posted by Chintu Swami 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Gopal Ji Mishra 6 years, 11 months ago

hexagonal

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How do you convert but -I- ene but -2- ene

Posted by Harsh Chhillar 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Tannu Sehwag 6 years, 11 months ago

CH3--CH2--CH=CH-----+HCL---> CH3---CH2--CHCL--CH3-------ALC.KOH------>CH3--CH=CH--CH3

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ANSWER

Determine the normality of the given hcl solution by titrating it against n/20 naoh solution

Posted by Rahul Kumar 6 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

19 jan ko chemistry ka pre board hai.... kya karun??? Aur chemistry ka important topic kya h ?

Posted by Aryan Raj 6 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Sneha Bansal 6 years, 11 months ago

Jitna bhi aata hai usko hi revise karo....

1Thank You

Nikhil Sachdeva 6 years, 11 months ago

Now yesterday

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What is bayers process

Posted by Bhoomi Srivatava 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Ashok Kumar 6 years, 11 months ago

It is used to distinguish between saturated and unsaturated hydrocarbons it is cold and dilute (alkaline) KMnO4

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Write the mechanism of acid dehydration of ethanol to yeild ether

Posted by Anchal Prasad 6 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Sakshi Shukla 6 years, 11 months ago

H2O+O-------H3O^+ C2H5OH+H3O^+--------C2H5+2H2O(protonation) C2H5+H2O------C2H5--O-H(formation of carbocation) /nucleophile attack) H C2H5-O-H-------CH2=CH2+H3O^+ H (deprotonation)

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