p-Block Element...

Which of the following compounds is/are obtained by heating boric acid?
a. HBO₂
b. H2B₄O₇
c. B₂O₃

The maximum oxidation state shown by any p-block element is

As we move from B to Al in the p-block elements the sum of the first three ionisation enthalpies

In the given question, two statements are provided which are labeled as Assertion (A) and Reason (R). Read both of them carefully and select the alternative that most suitably follows the statements.
Assertion (A): Diamond is a bad conductor of electricity.
Reason (R): All C-C bond lengths in diamond are of 154 pm.

There are six groups of p-block elements in the periodic table numbering from

One of the following p-block elements has unusually low melting point

The stability of the dihalides of Si, Ge, Sn and Pb increases steadily in the sequence

The valence shell electronic configuration of p-block elements is ns2np1-6. But this is not true in the case of

Aluminium should not be washed with materials containing washing soda as

Graphite is a smooth lubricant that is extremely difficult to melt. The reason for this anomalous behaviour is that graphite