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Mantosh Kumar & 1 other asked a question
Subject: Chemistry, asked on on 20/12/12

what is hardy schulze rule ?
Reshma Krishnan asked a question
Subject: Chemistry, asked on on 26/1/11

what is dispersed phase and dispersed medium
hemantagarwal4028... asked a question
Subject: Chemistry, asked on on 26/10/10

explain tyndall effect more deeply

Sai Raghavendra & 1 other asked a question
Subject: Chemistry, asked on on 11/9/13

 what is magneson reagent, what is its chemical formula and name ?
Dharu Shingadia asked a question
Subject: Chemistry, asked on on 8/3/13

Lyophilic sols are more stable den lyophobic sols. Why???
Harshit Johari asked a question
Subject: Chemistry, asked on on 22/8/12
what are the examples of physisorption and chemisorption
Cool Dude asked a question
Subject: Chemistry, asked on on 12/1/13

 what happens when glucose is treated with bromine water ??
Vinnie Thawani & 1 other asked a question
Subject: Chemistry, asked on on 2/1/16

which of the following electrolytes is most effective for the coagulation of Fe(OH)3 sol and why?

NaCl,Na2SO4,Na3PO4
mausumi_181525 asked a question
Subject: Chemistry, asked on on 22/12/11

Q3.  Differentiate between peptization and coagulation.
Reshmark Reshmark asked a question
Subject: Chemistry, asked on on 17/9/12

what is Bredig's Arc method?
Navya Ramachandran asked a question
Subject: Chemistry, asked on on 6/9/15
Why is a colloidal sol stable?
Sarang asked a question
Subject: Chemistry, asked on on 26/9/13

difference between physisorption and chemisorption
Gourab Goswami asked a question
Subject: Chemistry, asked on on 21/2/14

which of the following is most effective in coagulation of As2S3 sol?

Na3PO4, MgCl2, CaCl2, AlCl3
asonianj2011... asked a question
Subject: Chemistry, asked on on 26/1/12

what is haber's process????????
Dipankar Behera asked a question
Subject: Chemistry, asked on on 16/6/10

What is shape selective catalysis?
Suraj Raj asked a question
Subject: Chemistry, asked on on 21/8/13

Distinguish between Freundlich adsorption isotherm and Langmuir adsorption isotherm also by plotting graphs?
Vaibhav Gupta asked a question
Subject: Chemistry, asked on on 13/6/13

I can't understand that when AgNO3 Is added to KI solution ,ppt. adsorbes I- ions leading to the formation of negatively charged colloidal solution ,but when KI is added to same AgNO3 solution ,then adsorption of Ag+ ion takes place ,why not I- get adsorbed in this case also?Kindly explain

sripal.modi... asked a question
Subject: Chemistry, asked on on 19/1/12

which get adsorbed easily on charcoal?(NH3 or CO2)
Arun Mahadev asked a question
Subject: Chemistry, asked on on 22/6/10

Explain what is observed

(i) When a beam of light is passed through a colloidal sol.

(ii) An electrolyte, NaCl is added to hydrated ferric oxide sol.

(iii) Electric current is passed through a colloidal sol?
Avneet Kaur asked a question
Subject: Chemistry, asked on on 4/1/15
Explain the process of tanning
Faiz Razack asked a question
Subject: Chemistry, asked on on 18/10/12

difference between inhibitors and promoters...
King Kapoor & 1 other asked a question
Subject: Chemistry, asked on on 6/3/14

explain the relation between conductivity and molar conductivity of a solution?
Pooja Nath asked a question
Subject: Chemistry, asked on on 30/6/12

How adsorption is an exothermic reaction..???
Himanshu Aggarwal & 2 others asked a question
Subject: Chemistry, asked on on 18/4/15

what causes brownian movement in a colloidal solution?
Rohan Roy asked a question
Subject: Chemistry, asked on on 25/1/13

  • More easily liquefiable gases are adsorbed readily.

 

 Please explain the reason for the above phenomenon.
Piyush Jha asked a question
Subject: Chemistry, asked on on 11/6/14

If FeCl3 is added to excess of hot water, a postively charged sol of hydrated ferric oxide is formed due to adsorption of Fe3+ ions. However, when ferric chloride is added to NaOH, a negatively charged sol is obtained with adsorption of OH- ions. Why is there such a difference? Explain in detail.
Chaitanya asked a question
Subject: Chemistry, asked on on 20/1/13

Why is gelatine is added to ice-creams?
Anjali asked a question
Subject: Chemistry, asked on on 18/4/15
3g activated charcoal was added to 50ml of acetic acid solution 0.06N in a flask after an hour it was filtered & the strength of the filteratewas found to be 0.042N the amount of acetic acid adsorbed (per gram of charcoal )
Rajanichandran asked a question
Subject: Chemistry, asked on on 19/9/13

what is observed when an emulsion is subjected high speed centrifugation?
Nikita asked a question
Subject: Chemistry, asked on on 18/7/13

 what is the composition of copper matte?

 
Kwxyz asked a question
Subject: Chemistry, asked on on 4/5/15
ferric hydroxide sol is positively charged why?
Mahima Tripathi asked a question
Subject: Chemistry, asked on on 17/12/14
Why NH4Cl is added before adding NH4OH in group 3??
Kishu & 1 other asked a question
Subject: Chemistry, asked on on 5/4/15

Why does physisorption decrease with increase in temperature?
Navya Ramachandran asked a question
Subject: Chemistry, asked on on 7/6/15
Why does leather gets hardened after tanning?
Anjana Anujan & 1 other asked a question
Subject: Chemistry, asked on on 17/10/13

GIVE REASONS FOR THE FOLLOWING

A) colloids stabilize due to brownian movement.

B) cottrell's smoke precipitator is fitted at the mouth of chimney used in factories.

C) colloidal gold is used for intramuscular injection
Prince Yash asked a question
Subject: Chemistry, asked on on 9/3/14

explain :same substance can act both as colloids and crystalloids.(1 mark) ..... i've already seen the existing ans but not satisfied.
Masthan Reddy asked a question
Subject: Chemistry, asked on on 4/8/13

examples of lyophilic lyophobic sols
Anshu & 1 other asked a question
Subject: Chemistry, asked on on 3/3/17

why hydrophobic sols are easily coagulated?
Nitin Kumar asked a question
Subject: Chemistry, asked on on 6/5/15
In the presence of a magnetic field a d-orbital in an atom is
A Five fold degenerate
B Three fold degenerate
C Seven fold degenerate
D Non degenerate
Arnav Tyagi asked a question
Subject: Chemistry, asked on on 8/7/10

Why is it necessary to remove CO when ammonia is obtained by Haber’s process?
Aditi Keerti asked a question
Subject: Chemistry, asked on on 23/10/13

Comment on the statement colloid is not a substance but only state of substance.
Dadhichi asked a question
Subject: Chemistry, asked on on 27/10/12

 what is the difference between partial hydrolysis and complete hydrolysis?
Abha Kumari asked a question
Subject: Chemistry, asked on on 26/12/11

wht is preferential adsorption of colloidal sol?explain
Aswathi Aerath Vinayachandran asked a question
Subject: Chemistry, asked on on 18/4/13

What is the difference between double displacement and double decomposition reactions? Or are they the same?
Kedar Mjethiya asked a question
Subject: Chemistry, asked on on 1/8/15
50 ml of 1M oxalic acid (molar mass=126) is shaken with 0.5g of wood charcoal.the final concentration of the solution after adsorption is 0.5M. What is the amount of oxalic acid adsorbed per gram of carbon?
Pooja Nair asked a question
Subject: Chemistry, asked on on 26/6/10

What is an adsorption isotherm? Describe Freundlich adsorption isotherm.
Tuhinaa Nanda asked a question
Subject: Chemistry, asked on on 5/8/12

 what is platinised asbestos???????????????

what do we mean by activity  n desorption??????????????///  pls help............
Mohit Jain asked a question
Subject: Chemistry, asked on on 4/7/12

what is flocculating ion

Sneha asked a question
Subject: Chemistry, asked on on 11/2/14

Give an example of protective colloid.
Swati asked a question
Subject: Chemistry, asked on on 5/7/12

adsortion ,absorption,sorption is exothermic or endothermic.........n explain y is it ?
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