Recent questions tagged unit11

What are the resulting products of the reaction below?

asked Feb 25, 2014 by sreemathi.v

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A star initially has $\;10^{40}\;$ deutrons . If produces energy via the process $\;_{1}H^{1}+_{1}H^{2} \to _{1}H^{3}+P\;$ and $\;_{1}H^{2}+_{1}H^{3} \to _{2}He^{4}\;.$ If the average power radiated by star is $\;10^{16}W\;,$ the deutron supply of star is exhausted in a time of order of \[\] (The masses of nuclei are $\;m(H^2)=2.014\;amu\;,m(p)=1.007 amu , \; m(n)=1.0084 amu ,\; m(H)=4.001 amu))$

asked Feb 25, 2014 by yamini.v

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What would be the product in the following reaction:

asked Feb 25, 2014 by sreemathi.v

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Which of the following reaction is the best choice for preparing Ethyl phenyl ether?

asked Feb 25, 2014 by sreemathi.v

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The following ether,when treated with HBr produces

asked Feb 25, 2014 by sreemathi.v

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Which of the following statement is correct?

asked Feb 25, 2014 by sreemathi.v

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Williamson ether systhesis for tert-butyl methyl ether is

asked Feb 25, 2014 by sreemathi.v

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The major product formed on the reaction given below :

asked Feb 25, 2014 by sreemathi.v

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The major product formed in the reaction given below is

asked Feb 24, 2014 by sreemathi.v

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Among the following molecules:The increasing order of rate of cannizzaro reaction is

asked Feb 24, 2014 by sreemathi.v

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What is the major product in the following reaction:

asked Feb 24, 2014 by sreemathi.v

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Predict the product in the below reaction:

asked Feb 24, 2014 by sreemathi.v

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In the following reaction

asked Feb 24, 2014 by sreemathi.v

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The major product of the following reaction is

asked Feb 24, 2014 by sreemathi.v

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The ratio of minimum to maximum wavelengths of radiation that an electron cause in Bohr's hydrogen atom is

asked Feb 24, 2014 by yamini.v

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In the below reaction :The product X is

asked Feb 24, 2014 by sreemathi.v

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What would be the major product of the following reaction?

asked Feb 24, 2014 by sreemathi.v

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The approriate reagents for the following transformation?

asked Feb 24, 2014 by sreemathi.v

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In the below reaction :

asked Feb 24, 2014 by sreemathi.v

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What would be the product of the following reaction?

asked Feb 24, 2014 by sreemathi.v

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Product of below reaction will be

asked Feb 24, 2014 by sreemathi.v

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The product of the below reaction:

asked Feb 24, 2014 by sreemathi.v

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In the following reaction the major product formed is a

asked Feb 24, 2014 by sreemathi.v

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The activity of a radiooctine sample is measured as 4750 counts/min at $\;t=0\;$ and as 2700 counts/min at $\;t=5$ minutes . Calculate Lay life of sample

asked Feb 24, 2014 by yamini.v

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A deuterium reaction that occurs in an experimental fusion reactor is in two stapes \[\] (1) Two deuterium nucli fuse together to form a tritium nucleus , with a proton as a by-product written as $\; 1 > (D ,P)\; T\;.$ \[\] (2) A tritium nucleus fuses with another oleunterium nucleus to form a helium $\;_{2}He^{4}\;$ nucleus with neutron as a-by-product written as $\;T (D,n)\;_{2}He^{4}\;.$ Then the energy released in each of two stages and energy released in combined reaction is \[\] Given \[\] $\;_{1}D^{2}=2.014102\;a.m.u $ \[\] $\;_{1}T^{3}=3.016049\;a.m.u$ \[\] $\;_{1}H^{1}=1.007825\;a.m.u$ \[\] $\;_{1}n^{1}=1.008665\;a.m.u$\[\] The energy released per deuterium nuclei is

asked Feb 24, 2014 by yamini.v

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Which is a product of Y of the following reaction:

asked Feb 24, 2014 by sreemathi.v

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A deuterium reaction that occurs in an experimental fusion reactor is in two stapes \[\] (1) Two deuterium nucli fuse together to form a tritium nucleus , with a proton as a by-product written as $\; 1 > (D ,P)\; T\;.$ \[\] (2) A tritium nucleus fuses with another oleunterium nucleus to form a helium $\;_{2}He^{4}\;$ nucleus with neutron as a-by-product written as $\;T (D,n)\;_{2}He^{4}\;.$ Then the energy released in each of two stages and energy released in combined reaction is \[\] Given \[\] $\;_{1}D^{2}=2.014102\;a.m.u $ \[\] $\;_{1}T^{3}=3.016049\;a.m.u$ \[\] $\;_{1}H^{1}=1.007825\;a.m.u$ \[\] $\;_{1}n^{1}=1.008665\;a.m.u$

asked Feb 24, 2014 by yamini.v

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A single electron orbits around a stationary nucleus of charge +ze , where z is a constant and e is magnitude of electronic charge. It requires 47.2eV to exite the electron from $\;2^{nd}\;$ Bohr orbital to $\;3^{rd}\;$ Bohr orbital. find the atomic no.of element.The wavelength of radiation required remove electron from first Bohr's orbit to infinity is

asked Feb 22, 2014 by yamini.v

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