Chemistry Solutions

Henry's constant (in kbar) for four gases α, β, γ and δ in water at 298 K is given below:

The size of a raw mango shrinks to a much smaller size when kept in a concentrated salt solution. Which one of the following process can explain this?

The lanthanoid that does NOT show +4 oxidation state is:

The INCORRECT statement is:

A graph of vapour pressure and temperature for three different liquids $$ , and $$ is shown below:

The following inferences are made :

$\mathrm{X}$ has higher intermolecular interactions compared to $Y$

$X$ has lower intermolecular interactions compared to   $Y$ $$

$Z$ has lower intermolecular interactions compared to $Y$ $$

The correct inference (s) is / are :

The flocculation value of $\mathrm{H}\mathrm{C}\mathrm{l}$ for arsenic sulphide sol is $30\mathrm{m}\mathrm{m}\mathrm{o}\mathrm{l}{\mathrm{L}}^{-1}$ . If ${\mathrm{H}}_2{\mathrm{S}\mathrm{O}}_4$ is used for the flocculation of arsenic sulphide, the amount, in grams of ${\mathrm{H}}_2{\mathrm{S}\mathrm{O}}_4$ in $250\mathrm{m}\mathrm{L}$ required for the above purpose is (Molecular mass of ${\mathrm{H}}_2{\mathrm{S}\mathrm{O}}_4=98\mathrm{g}/\mathrm{m}\mathrm{o}\mathrm{l}$  )                 

Two open beakers one containing a solvent and the other containing a mixture of that solvent with a non-volatile solute are together sealed in a container. Over time