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What role does the molecular interaction play in solution of alcohol and water?

Posted by Shivam Mourya 8 years, 3 months ago

CBSE > Class 12 > Chemistry

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Why fe2o3.xH2o form in calcination process

Posted by Sushant Dubey 8 years, 3 months ago

CBSE > Class 12 > Chemistry

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Why in coordinate bond electron pair is added in octate of both atom

Posted by Anshika Mishra 8 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Sunil Yadav 8 years, 3 months ago

Because it is shared by both atom together

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How to calculate order of reaction.?

Posted by Gagan Bajwa 8 years, 3 months ago

CBSE > Class 12 > Chemistry

3 answers

Abhishek Verma 8 years, 3 months ago

Order of reaction can be calculated by adding all the powers of reactant in a rate of reaction.

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Sushant Dubey 8 years, 3 months ago

Order of reaction can be only calculated easily. When any complex is given with its oxidation and reduction form no. Or with charge. Like. (Ni (en) 2) +3

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Anshika Mishra 8 years, 3 months ago

Order of reaction can not be calculated theoretically, it only calculated experimently.

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Azeotropic

Posted by Prince Agrawal 8 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Simran Deep 8 years, 3 months ago

The substance boiling at constant temperature

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Why do human beings not digest cellulose??

Posted by Sarthak Gupta 8 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Amar Kumar 8 years, 3 months ago

Humans, unlike cows for ex. don't have the necessary bacteria in their intestines that make the enzymes(cellulases) necessary to breakdown the 1-4 beta glucose bonds. So we cannot break down cellulose into its constituent glucose molecules as we do with starch.No vertebrate can digest cellulose directly.

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Why do we not fill 10 electrons in f-block Elements And why they are outside from periodic table?

Posted by Yash Kumar 8 years, 3 months ago

CBSE > Class 12 > Chemistry

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When fused calcium hydride is electrolysed hydrogen is liberated at anode .why?

Posted by Tushar Gupta 8 years, 3 months ago

CBSE > Class 12 > Chemistry

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Fructose does not exit in 'L' form??

Posted by Shruti Mangal 8 years, 3 months ago

CBSE > Class 12 > Chemistry

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Explain why alcohol and ether of comparable molecular mass have different boiling point

Posted by Abhishek Kumar 8 years, 3 months ago

CBSE > Class 12 > Chemistry

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What is the role of adsorption in heterogeneous catalysis?

Posted by Abhishek Kumar 8 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Amar Kumar 8 years, 3 months ago

Adsorption is commonly an essential first step in heterogeneous catalysis. Adsorption is when a molecule in the gas phase or in solution binds to atoms on the solid or liquid surface. The molecule that is binding is called the adsorbate, and the surface to which it binds is the adsorbent. The process of the adsorbate binding to the adsorbent is called adsorption. The reverse of this process (the adsorbate splitting from adsorbent) is called desorption. In terms of catalyst support, the catalyst is the adsorbate and the support is the adsorbent.

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Chemistry means

Posted by Karan Singh 8 years, 3 months ago

CBSE > Class 12 > Chemistry

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Why grignard reagent should be prepare under an hydrous conditions?

Posted by Joypu Singson 8 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Sakshi Rawat 8 years, 3 months ago

It reacts with moisture and forms the hydrocarbon of the alkyl Hallide from which G.R was formed. Instead of getting RMgX, we get OHMgX.

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Sunil Yadav 8 years, 3 months ago

Because it rapidly reacts with moisture and interfares in formation of main product

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Order of reaction can be zero but not molecularity

Posted by Anitesh Roy 8 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Yash Kumar 8 years, 3 months ago

Molecularity zero means that any of element has taken part in reaction hence there will be no reaction therefore molecularity can't be zero

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What is roults law and prove tha roults law is the special case of henry law

Posted by Ankit Dey 8 years, 3 months ago

CBSE > Class 12 > Chemistry

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How to find valency of outermost shell ??

Posted by Abhishek Kalyane 8 years, 3 months ago

CBSE > Class 12 > Chemistry

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Periodic table

Posted by Vishal Patel 8 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Mayank Zanwar 8 years, 3 months ago

Learn it symbol

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Numericals on raoults law

Posted by Arshdeep Kaur 8 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Arshdeep Kaur 8 years, 3 months ago

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Ketan Yadav 8 years, 3 months ago

Not so important . Don't worry.

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I could not understand the distribution lattice points per unit cells in fcc and bcc

Posted by Sumit Yadav 8 years, 3 months ago

CBSE > Class 12 > Chemistry

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why corrosion increases in saline water

Posted by Azhar Iqbal 8 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Amar Kumar 8 years, 3 months ago

The presence of salt (or any electrolyte) in the water accelerates the reaction because it increases the conductivity of water, effectively increasing the concentration of ions in the water and so increasing the rate of oxidation (corrosion) of the metal.

The situation is complicated by the fact that salt dissolved in water actually reduced the amount of dissolved oxygen present in the water. This is because the water molecules are attracted to the dissolved ions from the salt (solvation), which has the tendency to decrease the weak affinity of non-polar oxygen molecules to water, thereby driving dissolved oxygen out. So if the metal is totally submerged in water, higher salt concentrations can actually reduce the rate of corrosion, if the water is not aerated. So it depends upon the amount of oxygen getting into the water and onto the metal.

4Fe+3O₂+6H₂O⟶4Fe(OH)₃

Corrosion (rust) is 'redox' reaction, which means it involves reduction (of oxygen into hydroxide ions) and oxidation (of metallic iron to iron cations).

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Is NH4+ is a ligand??

Posted by Radhe Prajapat 8 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Ravi Patel 8 years, 3 months ago

Weak ligand

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What method of haloalkenes

Posted by Ashwani Mishra 8 years, 3 months ago

CBSE > Class 12 > Chemistry

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What are the practicals

Posted by Saurabh Chandrakar 8 years, 3 months ago

CBSE > Class 12 > Chemistry

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Difference between electrolytes and non electrolytes

Posted by Ashok Kumar S 8 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Sahdev Sharma 8 years, 3 months ago

Electrolytes can produce ions when they are dissolved in water, but non electrolytes can’t produce ions.
Ionic compounds and some compounds with polar bonds can be electrolytes. Compounds with non polar bonds are mostly non electrolytes.
Electrolytesin solutions can conduct electricity contrary to non electrolytes.

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Tell no of base pairs in B-DNA and which type of DNA it is.

Posted by Ketan Yadav 8 years, 3 months ago

CBSE > Class 12 > Chemistry