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Polyurethane is crystalline or amorphous

Posted by Chitranshu Kumar 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Yashi Jadaun 7 years, 8 months ago

Amorphous

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Unit of rate of reaction

Posted by Kamran Ali 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Vaibhav Kumar Gupta 7 years, 8 months ago

For the reaction Ax + By ~ Cz Rate = [A]/t So, unit is g/ml×time

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Graph for zero degree reaction

Posted by Sahana Raju 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Vaibhav Kumar Gupta 7 years, 8 months ago

Conc. V/s t graph is negative and R v/s conc. Graph is constant

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Cbse questions for 2016 and 2017 year

Posted by Sherab Bhutia 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

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What is minimum boiling azeotrope?

Posted by Saurav Singh 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

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Different between minimum boiling azeotrops and maximum boiling azeotrops

Posted by Sanjana Kumary 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Abhishek Nigam 7 years, 8 months ago

The non ideal soln that show large deviation from Raoults law. minimum boiling azeotrope. Similarly, maximum boiling azeotrope is of less deviation from Raoults law.

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What is polarity

Posted by Bharat Arora 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Nikhil Pandey 7 years, 8 months ago

Having a charge is termed as polarity

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Why ionic solids are insulator at solid state but shows conductivity in molton state

Posted by Dhiraj Choudhary 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Muskan Goel 7 years, 8 months ago

It is so because in solid state ions are fixed at their position and cannot move freely but in molten state the strong force between them broke and they started to move freely and if ions move freely then they show conductivity

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What is positive deviation

Posted by Rohit Verma 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Abhishek Nigam 7 years, 8 months ago

ΔV mix=0 ΔH mix=0 More deviation by Raoults law

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A unit cell consists of a cube in which there are A atoms at the corner and B atoms at the face centres and A atoms are missing from 2 cornerscin each unit cell.what is the simplest formula of the compound?

Posted by Aiman Fatima 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

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Explain mechanism of polymerization of ethene

Posted by Sindhu Patil 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

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Carban kya hai

Posted by Sanjay Kumar 7 years, 8 months ago

CBSE > Class 12 > Chemistry

2 answers

A P 7 years, 8 months ago

Carbon

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Ranbir Trikha 7 years, 8 months ago

Ofcourse element

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some time with the electrode in the same electrolyte solution in such a case I do not require a Salt Bridge why

Posted by Vip Mishra 7 years, 8 months ago

CBSE > Class 12 > Chemistry

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Heating ZnO becomes yellow in colour .why?

Posted by Rajan Pathak 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Uday Pratap 7 years, 8 months ago

If ZnO is heated then Zn two +ve is formed with 2 electron and oxygen removed in the form of Dioxygen and Zn two +ve and 2 electron deposit at interstitial site. These 2electron behaves as F-center and it becomes yellow in colour.

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What is hydracids

Posted by Rachna Goyal 7 years, 8 months ago

CBSE > Class 12 > Chemistry