NEET Chemistry MCQ: NCERT Raoult's Law

🔄Ncert Concepts :Redox Titration, Normality, Equivalent Weight, Stoichiometry

3.

How many g of ${\rm{KMn}}{{\rm{O}}_4}$ are needed to prepare 3.75 litre of 0.850 $N$ solution if ${\rm{KMn}}{{\rm{O}}_4}$ is reduced as, ${\rm{MnO}}_4^ - + 8{{\rm{H}}^ + } + 5{\rm{e}} o {\rm{M}}{{\rm{n}}^{2 + }} + 4{{\rm{H}}_2}{\rm{O}}$

A

101 g

B

202g

C

50.5 g

D

303.0 g ${\rm{KMn}}{{\rm{O}}_4}$

Question Tags

🔄Ncert Concepts :Normality, Equivalent weight, Molar mass, Stoichiometry

4.

For the reaction, $2{\rm{F}}{{\rm{e}}^{3 + }} + {\rm{S}}{{\rm{n}}^{2 + }} o 2{\rm{F}}{{\rm{e}}^{2 + }} + {\rm{S}}{{\rm{n}}^{4 + }}$ The normality of ${\rm{SnC}}{{\rm{l}}_2}$ (mol.wt. = 189.7) solution prepared by dissolving 47.5 g in acid solution and diluting with ${{\rm{H}}_2}{\rm{O}}$ to a total of 2.25 litre is :

A

0.222 $N$

B

0.111 $N$

C

0.333 $N$

D

0.444 $N$

Question Tags

🔄Ncert Concepts :Normality, Molarity, Redox Reactions, Equivalent Weight

5.

How many gram of ${{\rm{I}}_2}$ are present in a solution which requires 40 mL, of 0.11 N ${\rm{N}}{{\rm{a}}_2}{{\rm{S}}_2}{{\rm{O}}_3}$ to react with it, ${{\rm{S}}_2}{\rm{O}}_3^{2 - } + {{\rm{I}}_2} o {{\rm{S}}_4}{\rm{O}}_6^{2 - } + 2{{\rm{I}}^ - }?$

A

0.56 g

B

0.28 g

C

1.12 g

D

0.84 g

Question Tags

🔄Ncert Concepts :Normality, Stoichiometry, Molar mass, Equivalent weight

6.

In the standardization of ${\rm{N}}{{\rm{a}}_2}{{\rm{S}}_2}{{\rm{O}}_3}$ using ${{\rm{K}}_2}{\rm{C}}{{\rm{r}}_2}{{\rm{O}}_7}$ by iodometry, the equivalent weight of ${{\rm{K}}_2}{\rm{C}}{{\rm{r}}_2}{{\rm{O}}_7}$ is :

A

$\begin{array}{*{20}{l}}

{\left( {molecular{\rm{ }}weight} \right)/2}

\end{array}$

B

$\begin{array}{*{20}{l}}

{\left( {molecular{\rm{ }}weight} \right)/6}

\end{array}$

C

$\begin{array}{*{20}{l}}

{\left( {molecular{\rm{ }}weight} \right)/3}

\end{array}$

D

Same as molecular weight

Question Tags

🔄Ncert Concepts :Redox Titration, Equivalent Weight, Oxidation State, Iodometry

7.

For the reaction, $2{\rm{F}}{{\rm{e}}^{3 + }} + {\rm{S}}{{\rm{n}}^{2 + }} o 2{\rm{F}}{{\rm{e}}^{2 + }} + {\rm{S}}{{\rm{n}}^{4 + }}$ The normality of ${\rm{SnC}}{{\rm{l}}_2}$ (mol.wt. = 189.7) solution prepared by dissolving 47.5 g in acid solution and diluting with ${{\rm{H}}_2}{\rm{O}}$ to a total of 2.25 litre is :

A

0.222 $N$

B

0.111 $N$

C

0.333 $N$

D

0.444 $N$

Question Tags

🔄Ncert Concepts :Normality, Molarity, Redox Reaction, Equivalent Weight

8.

How many g of ${\rm{KMn}}{{\rm{O}}_4}$ are needed to prepare 3.75 litre of 0.850 $N$ solution if ${\rm{KMn}}{{\rm{O}}_4}$ is reduced as, ${\rm{MnO}}_4^ - + 8{{\rm{H}}^ + } + 5{\rm{e}} o {\rm{M}}{{\rm{n}}^{2 + }} + 4{{\rm{H}}_2}{\rm{O}}$

A

101 g

B

202g

C

50.5 g

D

303.0 g ${\rm{KMn}}{{\rm{O}}_4}$

Question Tags

🔄Ncert Concepts :Normality, Equivalent weight, Molar mass, Stoichiometry

9.

In the standardization of ${\rm{N}}{{\rm{a}}_2}{{\rm{S}}_2}{{\rm{O}}_3}$ using ${{\rm{K}}_2}{\rm{C}}{{\rm{r}}_2}{{\rm{O}}_7}$ by iodometry, the equivalent weight of ${{\rm{K}}_2}{\rm{C}}{{\rm{r}}_2}{{\rm{O}}_7}$ is :

A

$\begin{array}{*{20}{l}}

{\left( {molecular{\rm{ }}weight} \right)/2}

\end{array}$

B

$\begin{array}{*{20}{l}}

{\left( {molecular{\rm{ }}weight} \right)/6}

\end{array}$

C

$\begin{array}{*{20}{l}}

{\left( {molecular{\rm{ }}weight} \right)/3}

\end{array}$

D

Same as molecular weight

Question Tags