Incorrect URL accessed!!!!

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What is dialysis (surface chemistry)?

Posted by Bhavi Jain 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Janmejai Singh 8 years, 2 months ago

Surface chemistry of dyes

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How can we extract silver from coins?(With full mechanism.)

Posted by Kiran Bala 8 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Kiran Bala 8 years, 2 months ago

Yr tum se kiss ke pass bhi itna time nhi hai Kya . Ki kisi ko ek answer Bata Kar uski help Kar de. Ese to tum log sab ko answers batate ho aur mujhe answer ka shi-shi javab nhi de rahe...?????

Kiran Bala 8 years, 2 months ago

Plz somebody help to give answer to this question.Thanx....

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Alloys

Posted by Kashish Garg 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is ores

Posted by Kashish Garg 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Ritika Yadav 8 years, 2 months ago

From we extract the metal

ANSWER

How is valence Bond theory applied???

Posted by Rupesh Kumar 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Give. The formula of ores : haematite and bauxite

Posted by Shiva Shishodia 8 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Chinkee Jaatrana 8 years, 2 months ago

Bauxite -Al2o3.2H2o

Shiva Shishodia 8 years, 2 months ago

Fe2o3

ANSWER

Simple tips for preparing organic chemistry.?

Posted by Ayush Gupta 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Nitin Murali 8 years, 2 months ago

Make notes and revise daily for atleast half an hour

ANSWER

What is ketone

Posted by Yash Anand 8 years, 2 months ago

CBSE > Class 12 > Chemistry

3 answers

Muskaan Sharma 8 years, 2 months ago

Dere may be alkyl or aryl grps

Mukul Agrawal 8 years, 2 months ago

Ketone is a functional group containing CO with two alkyl group on each side

Muskaan Sharma 8 years, 2 months ago

It's a organic cmpnd having carbonyl grp C=O with both sides of C having alkyl grp.

ANSWER

How does an electron releasing group increase electron density on oxygen

Posted by Shivani Rana 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Muskaan Sharma 8 years, 2 months ago

As dere is increase in electron density means dere is increase in no. of electrons. As dere is electron releasing/ donating grp is attached to O-atom, so, O-atom being an electonegative element can easily draw electrons from the other grp and dere is increase in electron density on oxygen.

3Thank You

ANSWER

Why ac current is used in wheat stone bridge in electrochemistry

Posted by Mandeep Chouhan 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Ayush Gupta 8 years, 2 months ago

Bcz using dc will electrolise the ions

ANSWER

Ticl3 is good reducing agents. Why???

Posted by Neha Tanwar 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Kaniksha Garg 8 years, 2 months ago

Coz , here Ti is in +3 oxidation state. But +4 is stable for Ti as Ti electronic configuration is 4s2 3d2 . By loosing four electrons it will achieve stable noble gas configuration. That's why Ti in +3 oxidation state try to loose one more electron and convert to +4 oxidation state. That's why Ticl3 is a good reducing agent.

ANSWER

Define raoult law and derivation

Posted by Anshuman Nayak 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Clf3 is known but fcl3 is not known

Posted by Arsh Deep 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

How prepare ammonia by hyber process

Posted by Puneet Pandey 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Mahesh Gautam 8 years, 2 months ago

N2+3H2------->2 NH3

ANSWER

What Sn1and Sn2 reaction

Posted by Akash Kumar 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Muskaan Sharma 8 years, 2 months ago

The nucleophilic substitution rk which involves only one molecule is SN1 and rk which involves two molecule is SN2. In SN1 dere is formn of carbocation whereas in SN2, the nucleophile attacks n leaving group leaves simultaneously.

ANSWER

Example of disporportion reaction...

Posted by Ankita Nayak 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Varun Narang 8 years, 2 months ago

H3PO3___(Heat)_____-> H3PO4 + PH3

ANSWER

Can we distinguish benzaldehyde and acetaldhyde through tollen's reagent test?

Posted by Sahil Rana 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Varun Narang 8 years, 2 months ago

Use Fehlings solution test , it does not react with Aromatic aldehydes whereas Tollens can oxidise both Aromatic and alliphatic.

ANSWER

Silver crystallises in face centred cubic (fcc) unit cell. If the radius of silver atom is 145 pm. Wht is the length of ech side of the unit cell

Posted by Khokochand Rajkumar 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Sahil Rana 8 years, 2 months ago

U can use the formula : a=2√2r

ANSWER

What sample paper have given in ore board

Posted by Aakriti Bhardwaj 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What changes occur when agcl is doped with cdcl2

Posted by Rishika Goel 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Varun Narang 8 years, 2 months ago

Every Cd+2 ion replaces two Ag+ ions ( to maintain electrical neutrality), thereby causing cation vacancy.

ANSWER

Ostwald process

Posted by Krishnendu Maji 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

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Blue print chapter vise

Posted by Raj Bassi 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Project on synthesis of dye

Posted by Rahul Rana 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

How to do organic

Posted by Vishwas Dang 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Mudit Bhandari 8 years, 2 months ago

Haathon se

ANSWER

LDPE and HDPE structure

Posted by Abhishek Singh 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

How can we extract silver from coins ?(With full mechanism.)

Posted by Suman Bhaskar 8 years, 2 months ago

CBSE > Class 12 > Chemistry

3 answers

Kiran Bala 8 years, 2 months ago

Yr kisi ke pass bhi itna time nhi hai answer batane ka....??

Kiran Bala 8 years, 2 months ago

Yr koi to help karo hamari bhi

Kiran Bala 8 years, 2 months ago

Plz tell the answer......

ANSWER

What do we mean by nucleophilic substitution reaction

Posted by Pallavi Singh 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is chilate

Posted by Pankaj Sihag 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Vrinda Gupta 8 years, 2 months ago

Definition of chelation. The formation or presence of bonds (or other attractive interactions) between two or more separate binding sites within the same ligand and a single central atom . A molecular entity in which there is chelation (and the corresponding chemical species) is called a "chelate".