Recently Active Chemistry Questions

Statement 1-Ag maybe prepared from Ag coins by treating them with HNO3 adn then with HCl to get AgCl but not directly treated with HCl Statement 2-HCl is not a good oxidising agent. ...

*Image* ans is give d. Plz tell me how the OH has been replaced ...... although double bond character is there ? ...

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A simple question --why is CO more stable than SiO ?? I initially thought that the size mattered , or simply inert pair effect was there . But that was not the answer at all !!! Try , fellows ...

i Na2S2O3 + dil HCl → ii Na2S2O3(aq) + Cl2 → iii SO2 + H2S → iv H2S + H2O2 → the reacns givin yellow turbidity are: a)ii,iii,iv b)iii and iv c)i,iii,iv d)i,ii,iii,iv ...

*Image* What are A and B? ...

Inner orbital octahedral complexes of Ni2+ ion r not formed TRUE/FALSE ...

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i m greatly confused between d friedel craft reactions which consists of acylation n alkylation ... dis according to d ncert buk is given is 1st chapter haloalkanes n haloarenes.. n gain in d second chapter it states of sum o ...

1..WHAT IS THE COORDINATION NUMBER OF N IN LI3N ??? ...

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is this a charles law formula??? [ (1/T) - ( V/T2) ] =0 at constant pressure? reply ...

in which of the following aqueous solution the degree of dissociation of water is maximum??? A) NH4Cl solution B) CH3COONa solution C) CH3COONH4 solution D) NaCl solution..... (corrwect answer is C _) ...

!) Triphenyl Benzoic acid (Ph groups at o & p positions) in acididc medium becomes - ? BTW,What is the Huang-Minlon method to convert aldehydes to hydrocarbons? 2) S1 :- Hlogenation of Alkanes is not a good method to prepare ...

1) A sample of 14CO2 was mixed with ordinary 12CO2 for some expt. 10 ml. of this mixture at STP possesses the rate of 104 Disintegrations per min. How many milli-curie of radio-active carbon is reqd to prepare 60lt. of such a ...

when one drop of concentrated HCl solution is added to one litre of pure water at 25 celcius the pH drops sudenly from 7 to about 4 When the second drop is added the Ph of the solution further drops to about.... A) 3.7 B) 2 C ...

1...what is benzoin condensation????? 2....give the mechanismof the following *Image* ...

if a sample contains contains Na2CO3,,,,will it titrate with dil. HCl?? ...

How do NO3- and PO3- differ structurally? ...

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*Image* predict the site of reactivity for the above reaction a) 1,2,3,4,5,6,7 b)1,3,5,7 c)2,4,6 d)1,4,7 ans please explain..... ...

Why is N2O3 most acidic among all the oxides of group 15 elements??? ...

plz give mechanism also----------- *Image* 4...can anyone explain function of Ag2O in ARDNT ESTER REACTION ...

is it aromatic? *Image* its actually not....explain why? ...

Try this. *Image* Derived the structure of A if you wanted a starting hint. Its the structure I've drawn by pen. Am uploading image by a link so that you can zoom : http://i138.photobucket.com/albums/q243/SVXX/scan032.jpg PS ...

A10% solution of cane sugar has undergone partial inversion according to the reaction: Sucrose+ Water -------> Glucose + Fructose. If the boiling point of solution is 100.27°C. (a) What is the average mass of the dissolve ...

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*Image* plz explain ur name too!!!!!! ...

multiple answer type An optically active compound (A) C4 H 7D decolorizes red brown colour of Br2 solution, when treated with D2 / Ni at 25°C it gives B(C4 H7 D3 ) and another isomers C with same molecular formula, which of ...

1.arrange order of polarity(with logic)-NH3,PH3,AsH3,SbH3. 2.which of these has the strongest sigma bond-ethane/ethene/ethyne/benzene? ...