31
MCQ (Multiple Correct Answer)
Which of the following statements are correct?
A
Among halogens, radius ratio between iodine and fluorine is maximum.
B
Leaving $\mathrm{F}-\mathrm{F}$ bond, all halogens have weaker $X-X$ bond than $X-X^{\prime}$ bond in interhalogens.
C
Among interhalogen compounds maximum number of atoms are present in iodine fluoride.
D
Interhalogen compounds are more reactive than halogen compounds.
32
MCQ (Multiple Correct Answer)
Which of the following statements are correct for $\mathrm{SO}_2$ gas?
A
It acts as bleaching agent in moist conditions.
B
Its molecule has linear geometry.
C
Its dilute solution is used as disinfectant.
D
It can be prepared by the reaction of dilute $\mathrm{H}_2 \mathrm{SO}_4$ with metal sulphide.
33
MCQ (Multiple Correct Answer)
Which of the following statements are correct?
A
All the three $\mathrm{N}-\mathrm{O}$ bond lengths in $\mathrm{HNO}_3$ are equal.
B
All $\mathrm{P}-\mathrm{Cl}$ bond lengths in $\mathrm{PCl}_5$ molecule in gaseous state are equal
C
$\mathrm{P}_4$ molecule in white phosphorus have angular strain therefore white phosphorus is very reactive
D
$\mathrm{PCl}_5$ is ionic in solid state in which cation is tetrahedral and anion is octahedral.
34
MCQ (Multiple Correct Answer)
Which of the following orders are correct as per the properties mentioned against each?
A
$\mathrm{As}_2 \mathrm{O}_3<\mathrm{SiO}_2<\mathrm{P}_2 \mathrm{O}_3<\mathrm{SO}_2\quad$ Acid strength.
B
$\mathrm{AsH}_3<\mathrm{PH}_3<\mathrm{NH}_3\quad$ Enthalpy of vaporisation.
C
$\mathrm{S}<\mathrm{O}<\mathrm{Cl}<\mathrm{F}\quad$ More negative electron gain enthalpy.
D
$\mathrm{H}_2 \mathrm{O}>\mathrm{H}_2 \mathrm{~S}>\mathrm{H}_2 \mathrm{Se}>\mathrm{H}_2 \mathrm{Te}\quad$ Thermal stability.
35
MCQ (Multiple Correct Answer)
Which of the following statements are correct?
A
$\mathrm{S}-\mathrm{S}$ bond is present in $\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_6$
B
In peroxosulphuric acid $\left(\mathrm{H}_2 \mathrm{SO}_5\right)$ sulphur is in +6 oxidation state
C
Iron powder along with $\mathrm{Al}_2 \mathrm{O}_3$ and $\mathrm{K}_2 \mathrm{O}$ is used as a catalyst in the preparation of $\mathrm{NH}_3$ by Haber's process
D
Change in enthalpy is positive for the preparation of $\mathrm{SO}_3$ by catalytic oxidation of $\mathrm{SO}_2$