Download App

States of Matter — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryStates of Matter2 Marks
Question
Name two phenomena that can be explained on the basis of surface tension.
✓

Answer

  1. Bubbles are round due to surface tension.
  2. Action of soaps and detergents are due to surface tension.
  3. Floating of a needle in water is due to surface tension.

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 "2 Marks Questions" from States of Matter→States of Matter — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

What is the hybrid state of each carbon in the following molecules?
  1. $\text{CH}_2=\text{C}=\text{CH}_2$
  2. $\text{CH}_3\text{CH}=\text{CH}_2$
  3. $\text{CH}_3\text{CHO}$
  4. $\text{CH}_3\text{CH}_2\text{OH}$
  5. $\text{CH}_3\text{COOH}$
→
Refer to the periodic table given in your book and now answer the following questions:
Select three metals that can show disproportionation reaction.
→
If total volume of gas obtained from electrolysis of water at NTP is $1 6 . 8$ litres. Calculate weight of electrolysed $H _2 O$.
→
An alkyl bromide (X) react with sodium metal dissolved in anhydrous ether to form 4, 5-diethyl octane. Identify 'X'.
→
Explain the nature of boric acid as a Lewis acid in water.
→
The aqueous solution of sugar does not conduct electricity. However, when sodium chloride is added to water, it conducts electricity. How will you explain this statement on the basis of ionisation and how is it affected by concentration of sodium chloride?
→
Balance the equation.
→
Give electron dot structure for carbon suboxide, $\mathrm{C}_3 \mathrm{O}_2$. Write its structural formula.
→
Which quantity out of $\Delta_\text{r}\text{G}$ and $\Delta_\text{r}\text{G}^\ominus$ will be zero at equilibrium?
→
Calculate the bond enthalpy of $Cl - Cl$ bond from the following data:
$CH_4(g)+Cl_2(g) \rightarrow CH_3 Cl(l)+HCl(l) ;\left[\Delta H=-100.3 kJ mol^{-1}\right]$
Given, bond enthalpies of $C - H , C - Cl$ and $H - Cl$ bonds are 413,326 and $431 kJ mol ^{-1}$ respectively.
→