MCQ
A $20\, ml$ sample of a $0.1\, M$ solution of the weak monoprotic acid $HA$ is titrated  with $0.25\, M \,NaOH$, volume of $NaOH$ solution required till equivalent point is :- ............. $\mathrm{mL}$
  • A
    $10$
  • B
    $6$
  • C
    $12$
  • $8$

Answer

Correct option: D.
$8$
d
mili gram equivalent of ${HA}$ = mili gram equivalent of ${NaOH}$

$0.1 \,\mathrm{N} \times 20\, \mathrm{mL}=0.25\, \mathrm{N} \times \mathrm{V}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Stability order of following carbocation is :

$(i)$ $\begin{array}{*{20}{c}}
  {\begin{array}{*{20}{c}}
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}-CH_2} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,|} 
\end{array}} \\ 
  {C{H_3} - {C^ + }} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}} 
\end{array}$

$(ii)$  $\begin{array}{*{20}{c}}
  {\begin{array}{*{20}{c}}
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,|} 
\end{array}} \\ 
  {C{H_3} - {C^ + }} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{H}} 
\end{array}$

$(iii)$ $\begin{array}{*{20}{c}}
  {\begin{array}{*{20}{c}}
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,|} 
\end{array}} \\ 
  {C{H_3} - {C^ + }} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}} 
\end{array}$

$(iv)$ $Ph - CH ^{+}-\underline{ CH }_{3}$ 

The adsorption of hydrogen by metals is called:
Match List $I$ with List $II$

List $I$(Quantum Number) List $II$(Information provided)
$A$. mı $I$. Shape of orbital
$B$. $m_s$ $II$. Size of orbital
$C$. $1$ $III$. Orientation of orbital
$D$. $\mathrm{n}$ $IV$. Orientation of spin of electron

Choose the correct answer from the options given below :

Consider the following values of $IE(ev)$ for elements $W$ and $X$

Element  $IE_1$ $IE_2$ $IE_3$ $IE_4$
$W$ $10.5$ $15.5$ $24.9$ $79.8$
$X$ $8$ $14.8$ $78.9$ $105.8$

Other two elements $Y$ and $Z$ have outer electronic configuration $ns^2$ $np^4$ and $ns^2$ $np^5$ respectively. According to given information which of the following compound $(s)$ is/are not possible

$(a)\, W_2Y_3\, (b)\, X_2Y_3\, (c)\, WZ_2\, (d)\, XZ_2$

A neutral atom has $13$ electrons and $14$ neutrons. Its mass number is $ ..........$
Which is amphoteric oxides ?
During the conversion of peroxide ion to superoxide ion electron is removed from
Which of the following statements is false?
The incorrect statement regarding above reactions is

$\mathop {Al}\limits_{metal} \xrightarrow[{(aq.)}]{{HCl}}'X' + Gas\,'P'$

$\mathop {Al}\limits_{metal} \xrightarrow[{ + {H_2}O}]{{NaOH\,(aq.)}}'Y' + Gas\,'Q'$

Arrange the following in decreasing order of reactivity towards $EAS$  (electrophilic aromatic substitution)