Recently Active Chemistry Questions

wats the odour of hydrogen peroxide like? ...

why do like charges repel and opposite attract? ...

How does the water accelerate the reaction rate in diels-alder reaction? can you guys explain detaily? ...

what is scintillation????????? ...

In Rutherford's gold foil experiment when a alpha particle approaches a nuclei then 1/2 mv2= 1/4piE0 2Ze2/r0 r0 is the distacne of closest approach. This distance is nearly 10-14m.So the radius of the nucleus should be less t ...

WHAT IS THE OXIDATION NUMBER OF CHROMIUM IN [Cr (O2)4] PLZ SOMEONE REPLY.. THE OXIDATION NO FOR EACH O IN (O2) IS -2?????? ...

Find the product.......... HC≡CH→(CH3MgBr) A A→(CO2,H3O+)B B→(HgSO4+H2SO4)C C→(Ag2O) D FIND D ans.acetic acid ...

we know that photons are mass less energy particles given by einstein. bt he gave a formula E=mc2 then what does m represents ...

IT IS AN OXIDISING AGENT RYT??? WHT WILL HAPPEN IF P4O10 IS ADDED TO 1,3 PROPANDIOIC ACID OR TO 1-2 PROPANDIOIC ACID??? ...

the heat of atomiza5ion is the change in enthalpy accompanying the conversion of 1 mole of an element or a compound in its most stable state at 298 K and 1 atmosphere into free atoms. Use Slater's rule to rationalize the foll ...

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WHAT IS THE ORDER OF NUCLEOPHILIC ATTACK AMONG THE FOLLOWING.. 1. CYLOPROPYL KETONE 2. CYCLO BUTYL KETONE 3. CYLO PENTYL KETONE 4. CYLO HEXYL KETONE PLZ.. DO MENTION THE FACTOR ALSO.. ...

A mixture of CO and CO2 when treated with I2O5 , gives I2 vapour according to following eqn. : 5CO + I2O5 - > 5CO2 + I2 I2 vapour was separated nd treated with HClO4 and resultant HIO4 reqd. 0.001 moles of glycerol ( CH2OH ...

IT IS AN OXIDISING AGENT RYT??? WHT WILL HAPPEN IF P4O10 IS ADDED TO 1,3 PROPANDIOIC ACID OR TO 1-2 PROPANDIOIC ACID??? ...

point out the more stable enol... A) Ph-C(OH)=CH-COOEt B) CH3-C(OH)=CH-C≡N also give your reason!! :) thanks in advance! :D ...

1) The rate of diffusion of 2 gases 'A' and 'B' are in the ratio 16:3. If the ratio of their masses present in the mixture is 2:3, then find (i) The ratio of their molar masses (ii) The ratio of their moles present inside the ...

How do we differentiate between the compounds containing SO32- and SO42- anions? in all books i've seen ,both the anions ( SO32- and SO42-) have same tests and both give same products. ...

1) How can we say that entropy is a function of probability of thermodynamic sate? 2) Ludwig-Boltzmann statement for Second law of thermodynamics(SLOT): "Nature tends to pass from less probable to more probable state" How is ...

Out of H-H and D-D which is having higher bond enthalpy and why? ...

How do we separate ethane from monochloroethane physically... like in a reactor? The given situation is that monochloroethane is being produced by chlorination of ethane.. i want more of product.. so i am applying le chatteli ...

A chem problem:A is immiscible in B; B is immiscible in C; please give an example such that A is immiscible in C. My chem teacher said A=water, B=oil, and C=Hg. However, Hg is an outlier! So, are there any other examples? ...

can anyone plz explain me why electron gain enthalpy denoted by reacton: X + e- → X- of all elements is mostly negative in value.This means that X- is more stable than X for most elements .How? plz explain. ...

what will be the product of the given reaction? phenol + P2S5 -> ? thought quite a lot about it..........but cant seem to figure it out!!! can anyone tell the proper mechanism as well , if possible?? ??? ...

For the complete coagulation of 200 mL of As2S3 solution, 10 mL of 1 M NaCl is required. What is the coagulating value of NaCl ? (A)200 (B)100 (C)50 (D)25 ...

for the longest wavelength transition in the Balmer series of atomic hydrogen. please help ...

find the no of stereo isomers of the compound Cr[(Cl)(Br)(NH3)(py)(NO2)(I)]? ...

1)The uncertainty in the location of circulating electron is equal to its de-broglie wavelength. The minimum percent error in its measurement of velocity under this circumstances will be approximately a)4 (b)8 (c)18 (d)22 2)T ...

*Image* my answer: 2-phenylcyclopent-1-ylmethanol given answer: 2-phenylcyclopent-3-ene-1-ylmethanol am i correct?? if not explain by which mechanism LiAlH4 reduces! :) thanks in advance! [1] ...

acetylene vs ethylene- which has higher reactivity towards electrophilic attack and why? ...

A neutral gas sample contains 84% ( by volume ) of CH4 , 10 % of C2H6 , 3 % of C3H8 and 3% of N2 . If a series of catalytic reacns cud be used for converting all the C atoms of the gas into butadiene , C4H6 , with 100% effici ...