Statement I: In the graph of $\Lambda_{m}$ vs $c^{1/2}$, the constant 'A' for NaCl and $MgSO_{4}$ is same. Statement II: The value of constant 'A' is same for all electrolytes of a particular type.
a.
Statement I and Statement II are true
b.
Statement I and Statement II are false
c.
Statement I is true and Statement II is false
d.
Statement I is false and Statement II is true
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Statement I: NaCl and MgSO$_4$ has same value of constant 'A' in plot of $\lambda_m$ against c$^{1/2}$. Statement II: All electrolytes of a particular type have the same value of 'A'
a.
Both statement I and II are correct
b.
Both statement I and II are incorrect
c.
Statement I is correct but statement II is incorrect
d.
Statement I is incorrect but statement II is correct.
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Co-ordination complex with composition PtBr$_2$·4NH$_3$ on reacting with excess of AgNO$_3$ produces two moles of AgBr precipitate. The secondary and primary valence of the metal ion in this complex is
a.
4 and 4
b.
6 and 2
c.
6 and 4
d.
4 and 2
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For the coordination compound $PtBr_{2} \cdot 4NH_{3}$, the reaction with excess $AgNO_{3}$ gives two moles of AgBr precipitate. The secondary and primary valencies of the metal ion in this complex are
a.
4 and 4
b.
6 and 2
c.
6 and 4
d.
4 and 2
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What are colligative properties? Name the colligative property expressed in terms of mole fraction. Write the mathematical equation of that colligative property.
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400 $cm^3$ of an aqueous solution of a protein contains 2.52g of the protein. The osmotic pressure of such a solution at 300k is found to be 2.57 × $10^{–3}$ bar. Calculate the molar mass of the protein [R = 0.083L bar $mol^{–1}$ $K^{–1}$].
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The following reaction takes place in the cell. $Mg_{(s)} + 2Ag^+_{(0.0001M)} \rightarrow Mg^{2+}_{(0.2m)} + 2Ag_{(s)}$. If $E^o_{cell} = 3.17V$, calculate the $E_{cell}$ at 298k.
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The initial concentration of $N_2O_5$ in the following first order reaction $N_2O_{5(g)} \rightarrow 2NO_{2(g)} + \frac{1}{2}O_{2(g)}$ was 1.24 × $10^{–2}$ mol $L^{–1}$ at 318k. The concentration of $N_2O_5$ after 60 minutes was 0.20 × $10^{–2}$ mol $L^{–1}$. Calculate the rate constant of the reaction at 318K.
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The vapour pressure of pure liquids A and B are 450 and 700 mm Hg respectively at 350K. Find out the vapour pressure of solution 'A' if the total vapour pressure of solution is 600 mm Hg.
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The activation energy for reaction, $2HI_{(g)} \rightarrow H_{2(g)} + I_{2(g)}$ is 209.5 KJ$mol^{–1}$ at 581K. Calculate the fraction of molecules of reactants having energy equal to or greater than activation energy.
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Write the mechanism of $S_N1$ reaction involved in the hydrolysis of tertiary butyl bromide. Mention the reactant on which rate of reaction depends in above reaction.
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Compound 'A' with formula $C_7H_8$ on heating with alkaline $KMnO_4$ and on further acidification produces compound B. Compound B on heating with ammonia at high temperature gives Compound 'C' with formula $C_7H_7NO$. Write the structure of compounds A, B and C.
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