Embibe Experts Solutions for Chapter: p- Block Elements, Exercise 1: AP EAPCET 2020 (24-Sep Shift-1)

Which statements about Boron and its compounds, among the following are true?
(i) Boron has high density and good electrical conductivity.
(ii) ${}^{10}\mathrm{B}$ isotope metal borides are useful as protective shields in nuclear industry.
(iii) Borax and boric acid are used in the manufacture of glasses.
(iv) Orthoboric acid is toxic and hence not useful in antiseptic solutions.

The type of hybridization of Boron in diborane is _____

Arrange the oxides of group- $15$ elements in decreasing order of their acidity:

Pure nitrogen gas is prepared in the laboratory by heating a mixture of _______

Treatment of $\mathrm{PbS}, \mathrm{Ag}$ and $\mathrm{Hg}$ with ${\mathrm{O}}_3$ gives ______, ______, ______ respectively.

The most electronegative element belongs to _________

Which of this order, for the property mentioned is not correct?

Match the following?