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What is the boora test

Posted by Nikendra Yadav 7 years, 11 months ago

CBSE > Class 12 > Chemistry

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Ellingham's diagram

Posted by Prince Tanwer 7 years, 11 months ago

CBSE > Class 12 > Chemistry

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Diffrentiate acetanoid nd lanthonoid

Posted by Palak Singh 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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Why Pcl5 gives fumes in moisture??

Posted by Mousumi Murmu 7 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Lalit Sharma 7 years, 11 months ago

Pcl5 + H2o --------- Pcl3 + Hcl +[O] .And [O]is the nescent oxygen .It is the fumes in moisture .

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Lalit Sharma 7 years, 11 months ago

Pcl5+H2o -------- Pcl3 + 2Hcl +[O] . And [O] is the nescent oxygen it is fumes in moisture.

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Amines are basic substances while amide are neutral. Explain

Posted by Aman Kumar 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Nitin Murali 7 years, 11 months ago

Amines are basic due to +I effect of alkyl groups which increases the negative charge on nitrogen atom.. While in amides there is resonance due to lone pair-pi bond conjugation hence neutral..

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Mostly asked practical viva questions

Posted by Hiba Jabin 7 years, 11 months ago

CBSE > Class 12 > Chemistry

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Name a substance which can be used as an antiseptic as well as disinfectant..?

Posted by Akshita Gupta 7 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Lalit Sharma 7 years, 11 months ago

Medicine dettol

3Thank You

Dev Gupta 7 years, 11 months ago

Phenol

5Thank You

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What is Victor mayer meathd

Posted by Dev Gupta 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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Viva questions on content of cold drink

Posted by Ansh Kumar 7 years, 11 months ago

CBSE > Class 12 > Chemistry

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Name the antipyretic drug. Which acts as analgesics

Posted by Raunak Yadav 7 years, 11 months ago

CBSE > Class 12 > Chemistry

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Define specific resistance

Posted by Jeet Tiger 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Subhamoy Das 7 years, 11 months ago

Also known as Restivity.Property of a material.Its the Resistance per unit length of a material.Temperature dependent.

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How can we calculate fcc

Posted by Anand Bisht 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Khushboo Arora 7 years, 11 months ago

Fcc means atoms are present at face centre and corners so at face centre atoms are 6/2=3 and at corners 8/8=1 so total contribution is 3+1=4

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Howto study chemical kinetics .I mean what basics are required from 11th?

Posted by Jagjit Singh 7 years, 11 months ago

CBSE > Class 12 > Chemistry

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Mechanism of formation of ch3ch2och2ch3

Posted by Rishav Rai 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Satyabrata Dalai 7 years, 11 months ago

shood be releasd to +2

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Why chlorobenzene gives o/p rxn despite of deactivating in nature????

Posted by Ishika Tanwani 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Akshita Gupta 7 years, 11 months ago

due to resonance (as chlorine has lone pair of electrons), there is an increase in electron density only at ortho and para positions with respect to the halogen. ... Halogen are unusual in effect on electrophilic aromatic substitution they are deactiviting yet ortho para directing.

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Draw the structure of BrF5

Posted by Swapnil Srivastava 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Nitin Murali 7 years, 11 months ago

Trigonal bipyramidal

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What is the monomer of teflon

Posted by Shruti Shukla 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Anjali Gupta 7 years, 11 months ago

CF2 = CF2

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Is electrical neutrility is maintained in both stoichiometric and non stoichiometric defect?

Posted by Mohini Verma 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Mansi Tiwari 7 years, 11 months ago

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Name the type of bonding which establishes alpha-halics structure in proteins.

Posted by Tushar Saini 7 years, 11 months ago

CBSE > Class 12 > Chemistry

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Formula of making two chemicals in one

Posted by Supriya Bamne 7 years, 11 months ago

CBSE > Class 12 > Chemistry

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Conversion from higher series to lower series of ethylalcohol to methyl alcohol

Posted by Anay Patidar 7 years, 11 months ago

CBSE > Class 12 > Chemistry

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Tomorrow is my chemistry paper what can i do??? Ncert ,paper solved or read chapter please suggest me friends.

Posted by Jay Bamaniya 7 years, 11 months ago

CBSE > Class 12 > Chemistry

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Why AgBr show both type of defects.

Posted by Mayank Sharma 7 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Mansi Tiwari 7 years, 11 months ago

Because the ratio of Ag and Br lies between these two defects

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Varun Narang 7 years, 11 months ago

Due to almost same size of Ag and Br Ag+ can easily as compared to Br- get trapped in the interstitial sites.

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What is crystal field theory?

Posted by Aman Singh 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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How to do numericals easier for boards

Posted by Ishan Verma 7 years, 11 months ago

CBSE > Class 12 > Chemistry

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A and B are functional isomer of compound C6H6O. On heating with NaOH and I2 isomer B forms yellow precipitate of iodoform whereas isomer A does not form any precipitate . Write the formula of A and B

Posted by Pankaj Sihag 7 years, 11 months ago

CBSE > Class 12 > Chemistry

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Topic for chemistry project file

Posted by Priyanka Bohra 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Sanjana Mukati 7 years, 11 months ago

Medicine, cold drinks, vitamins, alcohol

1Thank You

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Phinol and ethyl alchohol diffrence

Posted by Mukesh Kumar 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Prerak Mathur 7 years, 11 months ago

Phenol is more acidic than ethanol because after losing H+ ion, phenol converts to phenoxide ion which is resonance stabilitzed. Whereas in ethanol, after losing H+ ion, it changes to C2H5O^- ion in which C2H5 group applies +I effect. So it is destabilized.

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An organic compound having formula C2H4O on oxidation produces a carboxylic acid B with formula C2H4O2 which on treatment with KOH gives a product C with general formula C2H3O2K which on ele. gives CH3-CH3

Posted by Harsh Tomar 7 years, 11 months ago

CBSE > Class 12 > Chemistry