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How is Nylon 6, 6 prepared? Write any 'two' uses of terylene.
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In the Arrhenius equation for a first order reaction, the values of $' A \ '$ and $' E _{ a } \ '$ are $4 \times 10^{13} sec ^{-1}$ and $98.6 \ kJ \ mol ^{-1}$ respectively. At what temperature will its half life period be $10$ minutes? $\left[R=8.314 \ JK \ ^{-1} \ mol ^{-1}\right]$
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(I) $[Co(NH_3)_5SO_4]Br$ and (II) $[Co(NH_3)_5Br]SO_4$?
→→(I) $[Co(NH_3)_5SO_4]Br$ and (II) $[Co(NH_3)_5Br]SO_4$?
How are the following compounds prepared from alcohol :
$(1)$ Butanone
$(2)$ Pentan$-3-$one
$(3) \ 2,2-$Dimethylpropanal?
→$(1)$ Butanone
$(2)$ Pentan$-3-$one
$(3) \ 2,2-$Dimethylpropanal?
Give the structures of the following compounds:
(1) Pentan-2-one
(2) Propanal
(3) Botan-2-one
(1) Pentan-2-one
(2) Propanal
(3) Botan-2-one
What is a non-ferrous alloy?
In a first order reaction $A \longrightarrow$ product, $80 \%$ of the given sample of compound decomposes in $40 \ min$. What is the half life period of the reaction?
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The half-life of a first order reaction is $900 min$ at $820 K$. Estimate its half-life at $720 K$ if the energy of activation of the reaction is $250 kJ mol ^{-1}\left(1.464 \times 10^5 mm \right)$.
→Bond enthalpy of $H _2$ is $436 kJmol ^{-1}$ while hydration energy of hydrogen ion is $-1075 kJ mol ^{-1}$. Calculate the enthalpy of formation of $H ^{+}{ }_{(a q}$. (lonisation energy of hydrogen is $1312 kJ mol ^{-1}$
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