MCQ
Electrolytes when dissolved in water dissociates into ions because
- AThey are unstable
- BThe water dissolves it
- CThe force of repulsion increases
- ✓The forces of electrostatic attraction are broken down by water
✓
Answer
Correct option: D.
The forces of electrostatic attraction are broken down by water
d
Electrolytes when dissolved in water dissociates completely or partially to form ions. Example $NaCl$ when dissolved in water dissociates to $Na ^{+}$ and $Cl ^{-}$ ions. Thus $NaCl$ is a good electrolyte.
Electrolytes when dissolved in water dissociates completely or partially to form ions. Example $NaCl$ when dissolved in water dissociates to $Na ^{+}$ and $Cl ^{-}$ ions. Thus $NaCl$ is a good electrolyte.
Electrolytes when dissolved in water can conduct electricity. Because positive and negative ions are present in the solution because of the dissociation of the electrolytes in the solution.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Select the percentage in which these amine derivatives are formed in the reaction mixture along with the reason :-
The mole fraction of a solute in a solution is $0.1$ . At $298 \mathrm{~K}$, molarity of t is solution is the same as its molality. Density of this solution at $298 \mathrm{~K}$ is $2.0 \mathrm{~g} \mathrm{~cm}^{-3}$. The ratio of the molecular weights of the solute and solvent, $\left(\frac{M W_{\text {solute }}}{M W_{\text {solvent }}}\right)$, is
→Given below are two statements :
→Statement $I :$ The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution.
Statement $II :$ Electron withdrawing groups in the carboxylic acid will increase the rate of esterification reaction.
Choose the most appropriate option
Major product of above reaction is
Visible light will be absorbed by
When $9.45\, g$ of $ClCH _{2} COOH$ is added to $500$ $mL$ of water, its freezing point drops by $0.5^{\circ} C$. The dissociation constant of $ClCH _{2} COOH$ is $x \times 10^{-3}$. The value of $x$ is ...............
→(Rounded off to the nearest integer)
$\left[ K _{ f \left( H _{2} O \right)}=1.86 \,K\, kg mol ^{-1}\right]$
The helical structure of protein is stabilized by
Resonance structures can be written for
The boiling point of benzene is $353.23\,\, K$. When $1.80\,gm$ of a nonvolatile solute was dissolved in $90\,gm$ of benzene, the boiling point is raised to $354.11\,K$. the molar mass of the solute is ........ $g\,mo{l^{ - 1}}$ . $[{K_b}$ for benzene $= 2.53 \,K\,mol^{-1}$]
→A co-ordination complex compound of cobalt has the molecular formulae containing five ammonia molecules, one nitro group and two chlorine atoms for one cobalt atom. One mole of this compound produces three mole ions in an aqueous solution on reacting with excess of $AgN{O_3},$ $AgCl$ precipitate. The ionic formula for this complex would be:
→