S- And p-Block ...

Which of the following statements are FALSE?

P. All the bonds that are present in PCl₅ are similar.
Q. ICl is more reactive than I₂.
R. Chlorine is a stronger oxidising agent than fluorine.
S. Pentahalides are more covalent than trihalides.

What is the correct order of thermal stability of hydrides of group 16 elements?

Which of the following represents the correct order of reducing character of hydrides of group 15 elements?

Which of the following statements are FALSE?

P. The boiling point of PH₃ is lower than that of NH₃.
Q. Red phosphorus is more reactive than white phosphorus.
R. Phosphorus is sp³ hybridised in PCl₃.
S. In the solid state, PCl₅ exists as a covalent solid.

Assertion A: Elements of Group 16 generally show lower value of first ionization enthalpy as compared to the corresponding periods of Group 15.

Reason R: Due to extra stable half-filled p orbital electronic configurations of Group 15 elements, larger amount of energy is required to remove electrons as compared to Group 16 elements.

Which of the following statements are TRUE?

1. H₂S is more acidic than H₂Te.
2. Ozone is thermodynamically more stable than oxygen.
3. The two oxygen-oxygen bond lengths in the ozone molecule are identical.
4. Rhombic sulphur is the stable form of sulphur at room temperature.

Assertion (A): Halogens have the maximum negative electron gain enthalpy in their respective periods in the periodic table.

Reason (R): Halogens have the largest size in their respective periods and therefore, the highest effective nuclear charge.

Match the following:
 

The correct order of hydration enthalpies of alkali metal ions is

The alkali metals and their salts impart characteristic colour to an oxidising flame. Which of the following matchings of alkali metals and characteristic colour imparted to an oxidising flame by them is correct?