Recently Active Chemistry Questions

Choose the odd one out and give reasons for your answer : Propene,Ethene,1-Butene,2-Butene I choose Ethene as the odd one out because it has no isomers,while the others have atleast 1 isomer. Was I right in my prediction? If ...

sir in the third slide rate of reaction is given aA + bB  cC + dD We can write Rate of reaction= - 1/a ( Δ[A]/Δt) )=- 1/b ( Δ[B]/Δt )= 1/c Δ[C]/Δt )= 1/a ( Δ[D]/Δt ) why is it 1/a and not a??? from where are we get ...

*Image* The answer is B......ok dats fine dat a cabocation will form so it prooceeds in forward direction....but wouldn't d C option should also be correct......Why we r not accounting for d resonance stabilisation of RCOO-?? ...

can u explain this..hw did dis come..???.. ...

Can two electrons in the same orbital of the same sub-shell of the same energy state have the same energy? Or does different spin affect the energy of an electron?? ...

What is the formula of rust? ...

Is there any way of controlling radioactivity of an element apart from making an isotope with greater number of neutrons? If yes, what? ...

What is thermal De-Broglie wavelength??? Please give a simple explanation. ...

What is the difference between regiospecific and regioselective; and stereospecific and stereoselective? ...

The molecule which does not exhibit strong hydrogen bonding is : (A) methyl amine (B) acetic acid (C) diethyl ether (D) glucose. ...

Why are beta keto acids unstable? Or the other way round....Why do beta keto acids undergo decarboxylation easily? Can't just find a good reason for this..... ...

http://www.4shared.com/file/uDOAg_dU/Inorganic_Chemistry_2nd_End-Ca.htm ...

Among H2S,SO2,H2O which one has least bond angle and why? ...

Explain..why does O3 and NO2 show permanent dipole moment?? ...

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Convert ethanal to cyclohexylcarbaldehyde ...

to get pure aluminium we use the process "electrolysis refining" or hoope's electrolysis....can some1 plain it to me...its quite confusing.... ...

What is the core difference between "brazing" and "soldering"..??? They are almost the same processes... ...

which thing does diamond and graphite burn to give? →carbon or carbon-dioxide. ...

As far as I know, we ourselves are electromagnetic radiations with extremely high frequency. Also, the penetration power of an EM radiation increases with its frequency, right. So, why cant we pass through an aluminium foil? ...

Alright,I am facing a problem recently. In questions where it is said name the products of the following reactions(which are generally organic ones) do we have to just write the name or formula or both? And do we have to writ ...

As far as I know, if something is mass less, it travels with speed of light and if it has mass, it cannot reach the speed of light. According to De Broglie's equation, photons do have mass but yet they travel at the speed of ...

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Q).Oxygen is a).a halogen b).an alkaline earth c).a noble gas d).a nonmetal ...

why and how is D2O used as a moderator in nuclear reactors??? ...

what is exactly meant by tempering and how does it occur??? ...

The half life of Uranium is 2.5 x 105 yrs.In how many years 75% of the original amount of Uranium will be disintegrated? (a)105 yrs (b)30 yrs (c)3 x 2.5 x 105 yrs (d)2 x 2.5 x 105 yrs ...

why is it said that a better and uniform crystallisation is obtained if a crystal is already placed in the solution,which when cooled crystallises and deposits on the crystal....???is it due to cohesion or something???please ...

Convert ethanol to 2 methoxy propane ...

Dehydrobromination of A and B yield the same compound alkene C. C can regenerate A and B by addn of Hbr in the presence and absence of peroxide. 1,2 diphenyl ethane is obtained on reaction of C in presence of H+. Give structu ...