Periodic Classification of Elements

The hydride with lowest acid strength among the following is

Match the following List IList IIA. TechnetiumI. Non-metalB. FluorineII. Transition metalC. TelluriumIII. LanthanoidD. DysprosiumIV. Metalloid

Which among the following elements does NOT exhibit $-2$ oxidation state?

Which of the following properties increases from fluorine to iodine in group?

Identify the metalloid element from the following?

Which has the maximum electropositive character?

Which has maximum ionisation potential?

Which of the following has the highest electron affinity?

In which of the following arrangement the order is not according to the property indicated against it?

Bond between $A$ and $B$ can be represented by $A-B, A^{+} B^{-}, A^{-} B^{+}$ (I) (II) (III) If $A$ is more electronegative than $B$, then least contribution to the actual structure comes from

The correct order of ionic radius of nitrogen family is

Calculate the electronegativity of chlorine from bond energy of $\mathrm{Cl}-\mathrm{F}$ bond ($61 \mathrm{kcal} \mathrm{mol}^{-1}$) $\mathrm{F}-\mathrm{F}\left(38 \mathrm{kcal} \mathrm{mol}^{-1}\right)$ and…