MCQ
The one which has the highest value of $pH$ is
  • A
    Distilled water
  • $N{H_3}$ solution in water
  • C
    $N{H_3}$
  • D
    Water saturated with $C{l_2}$

Answer

Correct option: B.
$N{H_3}$ solution in water
(b) In water solution.

$N{H_3} + {H_2}O  \rightleftharpoons  NH_4^ + + O{H^ - }$

concentration of $O{H^ - }$ is increased so that solution become more basic and the $pH$  is increased.

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

In which of the following $\Delta E = \Delta H$
$2.2\, g$ of nitrous oxide $\left( N _{2} O \right)$ gas is cooled at a constant pressure of $1\, atm$ from $310\, K$ to $270 \,K$ causing the compression of the gas from $217.1 \,mL$ to $167.75 \,mL$. The change in internal energy of the process, $\Delta U$ is ' $- x ^{\prime} J$. The value of ' $x$ ' is $....$

[nearest integer]

(Given: atomic mass of $N =14\, g \,mol ^{-1}$ and of $O$ $=16\, g\, mol ^{-1}$.

Molar heat capacity of $N _{2} O$ is $100\, JK ^{-1}\, mol ^{-1}$ )

The $K _{\text {s }}$ of $Ag _2 CrO _4$ is $1.1 \times 10^{-12}$ at $298 K$. The solubility (in $mol / L$ ) of $Ag _2 CrO$, in a $0.1 M AgNO _2$, solution is
Which of the following sets of atomic numbers corresponds to elements of group $16$ ?
What will be the value of logarithm of equilibrium constant KP if the standard free energy change of a reaction is $\Delta\text{G}^\circ=-115\text{kJ}$ at 298K will be:
Equilibrium constants for the following reactions are given (pressure in atm) for the reactions at  $0\,^o C$. Select the option mentioning correct order of True $(T)$ or False $(F)$ statement

$A.6{H_2}{O_{\left( s \right)}} \rightleftharpoons A.2{H_2}{O_{(s)}} + \mathop {4{H_2}{O_{(g)}}};{{K_P} = 1.6 \times {{10}^{ - 11}}} $

$B.12{H_2}{O_{\left( s \right)}} \rightleftharpoons B.7{H_2}{O_{(s)}} + \mathop {5{H_2}{O_{(g)}}};{{K_P} = 2.43 \times {{10}^{ - 13}}} $

$B.10{H_2}{O_{\left( s \right)}} \rightleftharpoons {C_{(s)}} + \mathop {10{H_2}{O_{(g)}}};{{K_P} = {{10}^{ - 30}}} $

Aqueous tension of $H_2O$ at $0\,^oC$ is given as $0.76\  torr$

$(I)$ The most effective drying agent will be $C_{(s)}$. Out of $C_{(s)}$ , $B. 7H_2O_{(s)}$ & $A. 2H_2O_{(s)}$

$(II)$ At $0\,^oC$, $A.6H_2O_{(s)}$ & $B.12H_2O_{(s)}$ will

$(III)$ If $R.H$ is less than $100\%$ in a chamber at $0\,^oC$, then none of the substance can act as deliquescent

Which of the following is most acidic
Consider the following reactions 

$M{e_3}SiCl\xrightarrow{{{H_2}O}}A$

$M{e_3}SiCl_2\xrightarrow{{{H_2}O}}B$

$MeSiCl_3\xrightarrow{{{H_2}O}}C$

$(A), (B)$ and $(C)$ are known as ____,____, and ____ respectively in silicones formation

Addition of a mineral acid to an olefin bond leads to major product, Identify it
The silicate anion in the mineral kinoite is a chain of three $SiO_4$ tetrahedra that share corners with adjacent tetrahedra. The mineral also contains $Ca^{2+}$ ions, $Cu^{2+}$ ions, and water molecules in a $1 : 1 : 1$ ratio mineral is represented as: