Question
Write a note on Sandmeyer reaction.
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A first order reaction is 50% completed in 40 minutes at 300K and in 20 minutes at 320K. Calculate the activation energy of the reaction.
$\big(\text{Given}:\log2=0.3010,\log4=0.6021,\text{R}=8.314\ \text{JK}^{-1}\text{mol}^{-1}\big)$
→$\big(\text{Given}:\log2=0.3010,\log4=0.6021,\text{R}=8.314\ \text{JK}^{-1}\text{mol}^{-1}\big)$
Account for the following:
- Alkaline medium inhibits the rusting of iron.
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Nalorphene (C19H21NO3), similar to morphine, is used to combat withdrawal symptoms in narcotic users. Dose of nalorphene generally given is 1.5 mg. Calculate the mass of 1.5 – 10–3 m aqueous solution required for the above dose.
Give chemical tests to distinguish between the following pairs of compounds:
- Propanal and propanone.
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(i) Give the structure of haloalkane having five carbon by which optical isomerism is shown.
(ii) Which type of isomerism is present in 1-chloro butane and 1-chloro-2-methyl propane.
(iii) Write the position isomers of the compound having molecular formula $C _4 H _9 Cl$, which have straight chain.
→(ii) Which type of isomerism is present in 1-chloro butane and 1-chloro-2-methyl propane.
(iii) Write the position isomers of the compound having molecular formula $C _4 H _9 Cl$, which have straight chain.
State Raoult’s law for a solution containing volatile components. How does Raoult’s law become a special case of Henry’s law?
Identify the compounds A, B and C in the following reaction:
$\text{CH}_3-\text{Be}\ \xrightarrow{\ \ \text{Mg/ Ether}}\ \text{(A)}\ \xrightarrow[\text{(ii)}\text{Water}]{\ \ \text{CO}_2}\ \text{(B)}\ \xrightarrow[\triangle]{\ \ \text{CH}_3\text{OH}/\text{H}^+}\ \text{(C)}$
→$\text{CH}_3-\text{Be}\ \xrightarrow{\ \ \text{Mg/ Ether}}\ \text{(A)}\ \xrightarrow[\text{(ii)}\text{Water}]{\ \ \text{CO}_2}\ \text{(B)}\ \xrightarrow[\triangle]{\ \ \text{CH}_3\text{OH}/\text{H}^+}\ \text{(C)}$
Permanganate ion $\left( MnO _4^{-}\right)$gives different reduction products at different concentration of hydrogen ions, write their equations.
→How much electricity will be required to obtain 1.5 gram on copper in 3 hours in an electrolytic cell of aqueous solution of copper sulphate? (Atomic mass of Cu = 63.5 )
- Calculate $\Delta$rGo for the reaction:
Mg (s)+Cu2+ (aq) $\rightarrow$ Mg2+ (aq) + Cu (s)
Given: Eocell = + 2.71 V, 1 F = 96500 C mol–1
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