MCQ
In the following, which substance will have highest boiling point
  • A
    $He$
  • B
    $CsF$
  • $NH_3$
  • D
    $CHCl_3$

Answer

Correct option: C.
$NH_3$
c
$n=5\,\,5s\,\,4d\,\,5p$

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

Drinking water contains some salt impurities dissolved in it. When this solution is heated in an open container vapours are formed and separated slowly. In this process freezing point and osmotic pressure of remaining solution will continuously
Match each of the compounds in Column $I$ with its characteristic reaction$(s)$ in Column $II$.
Column $I$ Column $II$
$(A)$ $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{CN}$ $(p)$ Reduction with $\mathrm{Pd}-\mathrm{C} / \mathrm{H}_2$
$(B)$ $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OCOCH}_3$ $(q)$ Reduction with $\mathrm{SnCl}_2 / \mathrm{HCl}$
$(C)$ $\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2 \mathrm{OH}$ $(r)$ Development of foul smell on treatment with chloroform and alcoholic $\mathrm{KOH}$
$(D)$ $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{NH}_2$ $(s)$ Reduction with diisobutylaluminium hydride $(DIBAL-H)$
  $(t)$ Alkaline hydrolysis
$'A'$ and $'B'$ in the following reactions are ${image}$
$300\, ml$ of deci-molar solution of ${Ba(OH)_2}_(aq)$ was titrated with $100\, ml$ of $0.2M\, HCl_(aq)$ solution. The final solution had to be titrated with $V\,\,ml$ of semi-molar ${H_2SO_4}_(aq)$ solution for end-point. Correct option is $V=.......ml$
The correct statements among the following, for a $"$chromatography$"$ purification method is:
The number of possible isomers of an octahedral complex $[Co(C_2O_4)_2\,(NH_3)_2 ]^-$ is
In alkaline condition $KMn{O_4}$ reacts as $2KMn{O_4} + 2KOH \to 2{K_2}Mn{O_4} + {H_2}O + O$. The equivalent weight of $KMn{O_4}$ would be (Atomic mass of $K$ $= 39$, $Mn = 55$, $O = 16$)
The incorrect statements regarding enzymes are:

$(A)$ Enzymes are biocatalysts.

$(B)$ Enzymes are non-specific and can catalyse different kinds of reactions.

$(C)$ Most Enzymes are globular proteins.

$(D)$ Enzyme - oxidase catalyses the hydrolysis of maltose into glucose.

Choose the correct answer from the option given below:

Which of the following sets of concentrations will cause the precipitation of $ZnCl_2 \,(K_{sp} = 1.2\times10^{-12}M^3)$ ?