AIEEE 2004 (Chemistry) Mock Test

For which of the following parameters would the structural isomers ${\text{C}}_2{\text{H}}_5\text{OH}$ and ${\text{CH}}_3{\text{OCH}}_3$ be expected to have the same values? (Assume ideal behavior)

Which of the following liquid pairs shows a positive deviation from Raoult’s law?

Which one of the following statements is false?

What type of crystal defect is indicated in the diagram below?
${\text{Na}}^{+}{\text{Cl}}^{-}{\text{Na}}^{+}{\text{Cl}}^{-}{\text{Na}}^{+}{\text{Cl}}^{-}$
${\text{Cl}}^{-}\square {\text{Cl}}^{-}{\text{Na}}^{+}{\text{Cl}}^{-}{\text{Na}}^{+}$
${\text{Na}}^{+}{\text{Cl}}^{-}{\text{Na}}^{+}\square {\text{Na}}^{+}{\text{Cl}}^{-}$
${\text{Cl}}^{-}{\text{Na}}^{+}{\text{Cl}}^{-}{\text{Na}}^{+}{\text{Cl}}^{-}{\text{Na}}^{+}$

An ideal gas expands in volume from $1\times 10^{-3}{\text{m}}^3$ to $1\times 10^{-2}{\text{m}}^3$ at $300\text{K}$ against a constant pressure of $1\times 10^5{\text{Nm}}^{-2}$. The work done is: