Recently Active Chemistry Questions

NEGATIVE ADSORPTION? WHICH 1 OF THE FOLLOWING IS A CASE OF NEGATIVE ADSORPTION? 1.ACETIC ACID SOLUTION IN CONTACT WITH ANIMAL CHARCOAL 2.DIL.KCl SOLUTION IN CONTACT WITH BLOOD CHARCOAL 3.CONC.KCl SOLUTION IN CONTACT WITH BLOO ...

Complete the reaction................ Na2S205--------->_______________ a) Na2O2+SO2-O2 b) Na2SO4+Na2S5 c) Na2O2+SO2+O2 d) Na2O2+SO2 balance d equation urselves......... ...

Assertion: CO is a strong ligand but weak Lewis base Reason: CO does not form salt with BF3 ...

ans is a,d.....................plz xplain why a ???????? *Image* ...

Can you explain what is hyperconjugation and its use in predicting relative acidity, basicity .....? ...

Kp is 0.0529 at 26°C for the react. NH4HS===NH3 +H2S 0.092 mole of solid NH4HS is introduced into 2.46L of evacuated flask at 26°C A) cal. % of solid NH4HS decomposed B) find the no. of moles of NH3 to be added to reduce th ...

These are few questions asked by external examiner in our school in chem viva: 1. Chem formula of Sindoor. 2. Compound used for cleaning earrings.. 3. sag(spinach) me haldi (turmeric) kyun nahi dalte.. :D [3] me have chem pra ...

The diameter of the largest sphere that fis the void at the centre of cube edge of a BCC crystal of lattice parameter a, is? a)0.293a b)0.414a c)0.134a d)0.336a ...

In PCl5, all the P-Cl bonds are not identical-why? even tho there r no lone pair. >>>>> ?????/ is it due2 s p difference . but in hybridysation s an p combines an bcam sam in lengthhh .s ...

wat is meant by ambient temperature conditions? wat is calld a surfactant? ...

so what do you think is the product . I don't know the naswer. what do you get when you treat papaverine with hot.dil.KMnO4. here's the structure http://en.wikipedia.org/wiki/File:Papaverin_-_Papaverine.svg ...

can any1 gimme some easy ways or some logic to remember the orders f thermal stability f carbonates? ...

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*Image* write all the products..... ...

plzz. explain me the mechanism of wacker's process ...

WHICH OUT OF A AND B ARE AROMATIC??????? *Image* ANS : BOTH ...... PLZZZ XPLAIN Y?????? CHALO BAS EDIT BHI KAR DIYA..... NOW IS IT FINE!!!!!!!!!!! ...

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1)compare d solubility of the foll compounds of d alkali metals wid those of d alkaline earth metals : a) nitrates b) carbonates c) sulphates d) hydroxides 2) starting wid NaCl , how would you proceed to prepare sodium peroxi ...

CAN NE1 TELL ME FRM WER CAN I GET CHEMISTRY FORMULA LIST OR SUMTHIN OF THAT SORT???? ...

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please go thru the reaction and reply whether it is a possible reaction and give ur explanation dat supports ur ans *Image* ...

A bottle contains 1 mol He(g) and second bottle contaisn 1 mole Ar(g) at the same temperature.At this temp. ,the rms of HE is 1477 m/s and of Ar is 467 m/s.What is the ratio of no. of HE atoms in 1st bottle to the no. of Ar a ...

please give me a possible mechanism for the product *Image* ...

compound given below is reacted wid NBS..WATS D PRODUCT C - C = C - C - C 1 CH3 ...

*Image* and option c is *Image* ...

in case of bi-molecular collisions we calculate the value of b(in volume correction )as 8Ï€r3/3 (for one molecule) can somebody give me the value of b in case of tri-molecular collision and tetra-molecular collision ...

please give some link on this or atleast take an example and explain . for 3 salts . no less no more. ...

what is the effect of SeO2/H2O on a carbonyl compound? ...

...of alkanes with halogens why the order of replacement of hydrogen is 3°>2°>1°?? ...