Download App

MODEL PAPER 9 — Chemistry STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceChemistryMODEL PAPER 93 Marks
Question
Explain with examples the terms weak and strong electrolytes.
✓

Answer

Weak electrolytes: Weak electrolytes are those which do not dissociate into ions completely in aqueous solution e.g. $CH_3COOH$
Strong electrolytes: Strong electrolytes are those which dissociate into ions completely in aqueous solution e.g. $NaCl$

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

Explore more

More "3 Marks Question" from MODEL PAPER 9→MODEL PAPER 9 — all question types→Chemistry STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Indicate the steps in the preparation of: $\ce{KMnO_4}$ from pyrolusite ore.
→
What is Electrolytic cell? Explain simplest electrolytic cell in details?
→
A $4\%$ solution$(w/ w)$ of sucrose $(M = 342g\ mol^{-1})$ in water has a freezing point of $271.15K.$ Calculate the freezing point of $5\%$ glucose $(M = 180g\ mol^{-1})$ in water.
$($Given: Freezing point of pure water $= 273.15K)$
→
Explain mechanism of nucleophilic addition reaction of aldehydes and ketones with figure.
→
tert$-$Butylbromide reacts with aq. $\text{NaOH}$ by $S_N1$ mechanism while $n-$butylbromide reacts by $S_N2$ mechanism. Why?
→
What are haloarenes? How are they classified? Give one method for each of the preparation of nuclear and side chain substituted halorenes.
→
Answer the following questions:
An optically active compound having molecular formula $\ce{C_7H_{15}Br}$ reacts with aqueous $\text{KOH}$ to give a racemic mixture of products. Write the mechanism involved in this reaction.
→
Two elements $A$ and $B$ form compounds having formula $AB_2$ and $AB_4.$ When dissolved in $20 g$ of benzene $(C_6H_6), 1 g$ of $AB_2$ lowers the freezing point by $2.3 K$ whereas $1.0 g$ of $AB_4$ lowers it by $1.3 K.$ The molar depression constant for benzene is $5.1 K \ \text{kg mol}^{–1}.$ Calculate atomic masses of $A$ and $B.$
→
The reaction between $A$ and $B$ is first order with respect to $A$ and zero order with respect to $B$.
Fill in the blanks in the following table:
Experiment $[A]/mol\ L^{-1}$ $[B]/mol\  L^{-1}$ $\text{Initial rate/mol L}^{-1} min^{-1}$
$I$ $0.1$ $0.1$ $2.0 \times 10^{-2}$
$II$ $-$ $0.2$ $4.0 \times 10^{-2}$
$III$ $0.4$ $0.4$ $-$
$IV$ $-$ $0.2$ $2.0 \times 10^{-2}$
→
Write the important structural between DNA and RNA.
→