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The dipole moment of $HCl$ is $1.03\, D$, if $H-Cl$ bond distance is $1.26\,\overset{o}{\mathop{A}}\,,$ what is the percentage of ionic character in the  $H-Cl$ bond? ............. $\%$
$5$ milli-moles of a solid $A$ was dissolved in $5$ moles of $H_2O$ . On adding to the solvent, $A$  starts polymerising into another insoluble solid following zero order kinetics. On adding $6$ milli-moles of another solid solute $C$ (after $20$ minute) the polymerisation completely stops. The  nsoluble solid polymer is removed and the resulting solution was cooled to a temperature less  than $- 0.186\,^oC$ (melting point of solution) to cause solidification of some liquid water. Calculate the value of $'X'$ if rate constant for polymerisation reaction is represented as $10^{-X}\,moles/minute$ . $[K_f(H_2O) = 1.86\, K\,- Kg\,mole^{-1}]$
Which of the following factors tends to increase the stability of metal ion complexes
Formation for ammonia is shown by the reaction ${N_{2(g)}} + 3{H_{2(g)}} \to 2N{H_{3(g)}},{\Delta _r}{H^o} =  - 91.8\,kJ\,mo{l^{ - 1}}$ What will be the enthalpy of reaction for the decomposition of $NH_3$ according to the reaction $2N{H_{3(g)}} \to {N_{2(g)}} + 3{H_2};{\Delta _r}{H^o} = ?$ .....$ kJ\, mol^{-1}$
The combustion enthalpies of carbon, hydrogen and methane are $ - 395.5\,kJ\,mo{l^{ - 1}}$, $ - 285.8\,kJ\,mo{l^{ - 1}}$ and $ - 890.4\,kJ\,mo{l^{ - 1}}$ respectively at ${25\,^o}C$. The value of standard formation enthalpies of methane at that temperature is .....$kJ\,mo{l^{ - 1}}$
In compound $X$, all the bond angles are exactly ${109^o}28',\,\,X$ is
Which compound undergoes nucleophilic substitution with $NaCN$ at the fastest rate ?
A molecule $M$ associates in a given solvent according to the equation $M\, \rightleftharpoons \,{(M)_n}$ For a certain concentration of $M,$ the van't Hoff factor was found to be $0 .9$ and the fraction of associated molecules was $0.2.$ The value of $n$ is
Suitable reagent for following conversion
Ethyl amine undergoes oxidation in the presence of $KMn{O_4}$ to form