CBSE > Class 12 > Chemistry | CBSE Board | Homework Help

Some substances, at low concentrations behave as normal strong electrolytes while at higher concentrations, they show colloidal behaviour due to the formation of some aggregated particles that are called micelles. For example, soaps and synthetic detergents show this property (Associated colloids).

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Sanjana Mukati 8 years, 2 months ago

At low concentration soap and detergent behaves like a electrolyte but high concentration their opposite charge ions are collide this phenomenon is called micelles.

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Difference between thermosetting and thermoplastic

Posted by Jatin Goel 4 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Sia ? 4 years, 9 months ago

Thermoplastic	Thermosetting Plastic
Thermoplastic can be synthesized by the process called addition polymerization.	Thermosetting plastics are synthesized by condensation polymerization.
Thermoplastic is processed by injection moulding, extrusion process, blow moulding, thermoforming process, and rotational moulding.	Thermosetting Plastic is processed by compression moulding, reaction injection moulding.
Thermoplastics have secondary bonds between molecular chains.	Thermosetting plastics have primary bonds between molecular chains and held together by strong cross-links.
Thermoplastics have low melting points and low tensile strength.	Thermosetting plastics have high melting points and tensile strength.
Thermoplastic is lower in molecular weight, compared to thermosetting plastic.	Thermosetting Plastic is high in molecular weight.

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number of moles of solution in the solution per ml. is

Posted by Snabya Subhangi 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Sagar Rana 8 years, 2 months ago

1000

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Preparation of potassium permanent from purolustead

Posted by Manmeet Gill 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

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How to do conversions easily

Posted by Shweta Gandhi 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Divyansh Tamrakar 8 years, 2 months ago

By written practise atleast 4 times

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How we make helium gas by hydrogen molecules

Posted by Ayush Singh 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

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Why does 3rd period has 8 elements instead of 18 in a periodic table?

Posted by Anjali Sahu 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

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Important reactions of organic chemistry chapter 1

Posted by Shubham Sharma 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

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From Last year paper questions will be asked in cbse or not

Posted by Suhani Saluja 8 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Ankita Vats 8 years, 2 months ago

Sometime. But last year paper is beneficial to know the pattern of the paper.

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Anjali Sahu 8 years, 2 months ago

No....

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at is iodoform test

Posted by Royan Chhetri 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

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Write the structure of 1-phenylpropan-2-ol

Posted by Shivdas Kashyap 8 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Swagata Singha 8 years, 2 months ago

C6H5-CH2-CH(OH)-CH3

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Tanisha Brar 8 years, 2 months ago

Benzene-CH3-CH(OH)-CH3

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Why is ferric chloride preferred over potassium chloride in case of a cut leading?

Posted by Annie Hojai 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

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Benzene to aniline conversion

Posted by Babu Kumar 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Divyansh Tamrakar 8 years, 2 months ago

1. Benzene ----> nitro benzene (by Easr,i.e electrophilic aromatic substitution reaction) 2. Then, nitrobenzene -----> aniline(by raney nickel ,i.e Ni,H)

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Complete the following reactions 1)ph-CH2cl+c2h5ona 2)(ch3)3-br+h2o 3)ch3ch-c(ch3)2+her 4)c2h5ona+socl2 2c2h5cl+na

Posted by Amisha Thakur 8 years, 2 months ago

CBSE > Class 12 > Chemistry