Embibe Experts Solutions for Chapter: Classification of Elements and Periodicity in Properties, Exercise 2: Level 2

Alkali metal do NOT form dipositive ions because they have high_____________

The order of electronegativity of carbon in $\mathrm{sp}, {\mathrm{sp}}^2$ and ${\mathrm{sp}}^3$ hybridised states, follows:

Among ${\mathrm{P}}_2{\mathrm{O}}_5, {\mathrm{As}}_2{\mathrm{O}}_3, {\mathrm{Sb}}_2{\mathrm{O}}_3$ and ${\mathrm{Bi}}_2{\mathrm{O}}_3$, the most acidic oxide is:

Which of the following statement is incorrect?

Which one of the following statements is correct?

For magnitude of electron gain enthalpy of chalcogens and halogens, which of the following options is correct?

$\frac{{\mathrm{N}}_0}{2}$ atoms of $\mathrm{X} \left(\mathrm{g}\right)$ are converted into ${\mathrm{X}}^{+} \left(\mathrm{g}\right)$ by absorbing ${\mathrm{E}}_1$ energy. $2{\mathrm{N}}_0$ atoms of $\mathrm{X} \left(\mathrm{g}\right)$ are converted into ${\mathrm{X}}^{-} \left(\mathrm{g}\right)$ by releasing ${\mathrm{E}}_2$ energy. Calculate ionisation enthalpy and electron gain enthalpy of $\mathrm{X} \left(\mathrm{g}\right)$ per atom.

Arrange $\mathrm{F},\mathrm{C},\mathrm{N},\mathrm{O}$ in the decreasing order of electronegativity: