Chemical Bonding — Chemistry STD 10 — Question

The conversion of ethene to ethane is an example of _______ .

Each __________ in the periodic table is comprised of elements having the same number of electron shells.

The _______ the concentration of an ion in a solution, the greater is the probability of its being discharged at its appropriate electrode.

As the pH of solution increases, the __________ strength of the solution progressively decreases.

It is a colourless _______ gas at room temperature.

The following are the typical properties of dilute acid. complete them by inserting suitable words :
Active metal + acid → ............. + ...............

Complete the following:
Ionic or electrovalent compounds do not conduct electricity in their ......... state. (Fused, solid)

Metals are ______ while non-metals are ______ conductors of heat.

In the formation of magnesium oxide, the magnesium atom loses two electrons from its valence shell and hence is a ________. (oxidising agent/reducing agent).

The acid which cannot act as an oxidising agent is ________. [Conc. H₂SO₄, Conc. HNO₃, Conc. HCl]