Study of Compounds - Hydrogen Chloride — Chemistry STD 10 — Question

Name a white salt produced by an acid gas and a basic gas.

What is the common feature of electronic configurations of the elements at the end of period 2 and period 3?

Compound which cannot be used to dry hydrogen chloride gas.

A given white crystalline salt was tested as follows: The addition of barium chloride solution into this solution gave a white precipitate. What conclusions can be drawn for the observation?

The type of reactions alkenes undergo.

What do you understand by the following:
Reagent

Two compounds of lead which combine with conc. HCl to liberate chlorine.

What would you observe in the following case?
Concentrated sulphuric acid is added to equal volumes of cold water.