MCQ
Among the following substances, the lowest vapour pressure is exerted by :
- Awater
- Balcohol
- Cether
- ✓mercury
✓
Answer
Correct option: D.
mercury
Vapor pressure of mercury is very low $($compared to a liquid like methyl alcohol$)$ because the forces of interaction between the individual metal atoms of mercury is quite a bit stronger than the cohesive molecular forces $($such as a hydrogen bonding$)$ that holds together several molecules in case of alcohols,ethers and water.
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
Identify the incorrect statement from the following.
The equivalent mass of a metal is $29.73$ and the vapour density of its chloride is $130.4$. Find out the atomic mass of the metal
→Which one has maximum oxidation number of phosphorous
Which is the most stable conformer along the $2, 3\, C - C$ bond axis of the compound ?
→The hybridization state of carbon atom in diamond i :
The decomposition of $\ce{H_2O_2}$ is prevented by :
→Which of the following is correct order for rate of nucleophilic addition of the given compounds?
Under isothermal and reversible conditions, the term "free energy" in thermodynamics signifies
In the structure of diborane.
$\mathop {{C_3}{H_7}I}\limits_{(P)} \xrightarrow[{\left( {alco.} \right)}]{{KOH}}Q\xrightarrow{{NBS}}R\xrightarrow{{KCN}}C{H_2} = CH - C{H_2} - CN$,
→$P$ can be