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

According to bio it is a protein which catalyse the bio-chemical reaction. But in chemistry it is called simply a catalyst which catalyse the chemical reaction

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Aryan Rajpoot 7 years, 3 months ago

Enzymes also called bio catalysts these catalyse biochemical reactions occurring mainly inside living organisms

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Anubhav Singh 7 years, 3 months ago

It is a type of catlysye

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Why crystalline solid is an anisotropic in nature

Posted by Stuti Mehra 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Arasalan Ansari 7 years, 3 months ago

because the physical properties like electrical resistance ,refractive index have different value in different direction reason it have regular pattern of arranagement in all direction

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How 1 chloropropane is converted into propene

Posted by Stuti Mehra 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Mohammad Shoeb Ansari 7 years, 3 months ago

By the elimination reaction

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What happen when chloro benzene is react with methyl chloride in presence of anhydrous AlCl3

Posted by Stuti Mehra 7 years, 3 months ago

CBSE > Class 12 > Chemistry

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How chlorobenzene is converted into diphenyl

Posted by Stuti Mehra 7 years, 3 months ago

CBSE > Class 12 > Chemistry

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What is organic

Posted by Abhijeet Yadav 7 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Aryan Rajpoot 7 years, 3 months ago

Compounds made up of carbon and hydrogen are called organic

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Pooja Sarkar 7 years, 3 months ago

Organic is mainly the study of compounds of Carbon and hydrogen.

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Give reasons:1.p-nitrophenol is more acidic than p-methyl phenol 2.bond length of c-o bond in phenol is shorter than that in methanol 3.(CH3)3C-Br on reaction with sodium methoxide (Na+-O CH3) gives alkenes as the main product and not an ether.

Posted by Rajabunisha Karishma 7 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Pooja Sarkar 7 years, 3 months ago

2) In phenol C is double bonded atom hence it is more electronegative so it attracts the OH but in methanol C is single bonded and is less electronegative ,hence has longer bond lengh than in phenol.

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Pooja Sarkar 7 years, 3 months ago

1) In p-nitrophenol, NO2 is an electron withdrawing grp which makes the conjugate system easy to release H+, Whereas , In p- methylphenol CH3 is an electron donour which reduces the acidity & makes difficult to release H+

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Nitrogen is a gas while phosphorus us solid.why

Posted by Gopal Krishna Trivedi 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Vishal Kumar 7 years, 3 months ago

Nitrogen is a gas because it is simple diatomic molecule with triple bond between the two nitrogen atoms. Due to its small size and non polar nature, intermolecular forces are absent and it is gas in nature.

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Why are solid have definite volume

Posted by Manish Kumar 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Omiiiii Mehta 7 years, 3 months ago

Due to intermolecular force of attraction between particles are high therefore particles not free to move

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Can we stir silvernitrate solution with nickle

Posted by Shubham Martyan 7 years, 3 months ago

CBSE > Class 12 > Chemistry

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What subjects i can take instead of chemistry? Please please please answer to me

Posted by R Meera Raghunaathan 7 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Stuti Mehra 7 years, 3 months ago

But according to the rule of C.B.S.E i think there is no option in PCB or PCMB or PCM if you are taking science

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Harsh Singh Rajpoot Singh 5 years, 8 months ago

Physical education a scoring subject

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Numericals on Solid State

Posted by Kanaiyalal Lukka 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Anjana Sherawat 7 years, 3 months ago

Ask the numerical problems

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What subjects i can add instead of chemistry

Posted by R Meera Raghunaathan 7 years, 3 months ago

CBSE > Class 12 > Chemistry

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ANSWER

Why nitrogen stable at room temperature and behave like a inert gas

Posted by Karishma Grewal 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Aryan Rajpoot 7 years, 3 months ago

Because N2 has triple bond which has high bond dissociation anthalpy so it is stable at room temp

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Why glass called a super cooled liquid

Posted by Neha Gahlawat 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Anjana Sherawat 7 years, 3 months ago

Because it has the tendency to flow like liquids

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Limiting molar conductivity can't be measured by wheat stone bridge why??

Posted by Aryan Rajpoot 7 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

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What is the difference between covalency and oxidation state?

Posted by Avneet Kaur 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Rohit Kumar 7 years, 3 months ago

covalency kitne bond ban rhe h or oxidation state kitne electron bond bana rhe h

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A doctor advice to a person suffering from high blood pressure to take less quantity of salt

Posted by Prakash Parmar 7 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Avneet Kaur 7 years, 3 months ago

Because salt is the factor which increases blood pressure. .......

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Dabas Jaat 7 years, 3 months ago

so what?

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Tell me the answer of the chemistry question

Posted by Deepak Jindal 7 years, 3 months ago

CBSE > Class 12 > Chemistry

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How can I find out order of reaction??

Posted by Deepak Jindal 7 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Deepak Jindal 7 years, 3 months ago

Thanks

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Avneet Kaur 7 years, 3 months ago

Juss add the powers which the different reactants are raised to...........Eg. ....rate law equation of a reaction is like..........rate =k (A)^m (B)^n.......so order of reaction will be (m+n)

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mechanism of alcohol

Posted by Jai Vats 7 years, 3 months ago

CBSE > Class 12 > Chemistry

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What are n type conductors

Posted by Peena Jainpur 7 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Deepak Jindal 7 years, 3 months ago

By doping with electron rich impurites

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Deepak Jindal 7 years, 3 months ago

By doping with electron rich impurities

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Why is white phosphorus highly reactive when compared to red phosphorus?

Posted by Rishabh Mehrotra 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Yuvedha T 7 years, 3 months ago

White P4 is under angular strain.{expected bond angle-109.5° ;bond angle-60°}so it is highly reactive.

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Application of chellates

Posted by Anupam Mishra 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Rishabh Mehrotra 7 years, 3 months ago

Chelates are mainly formed to attain the extra stability of the complexes then monodentate ligands and all type of polydentate ligands can act as chelating ligands. the main reason behind the stability of chelates is that they form the closed ring chain structure of 5-6 members which provides them extra stability.

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Halaalkene is misible in water why

Posted by Raushan Kumar 7 years, 3 months ago

CBSE > Class 12 > Chemistry