Chemistry
Give reasons for the following:
Hydrogen is collected by the downward displacement of water and not air even though it is lighter than air.
Related Questions
Give reasons for the following:
Granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid.
Give reasons for the following:
Hydrogen and alkali metals of group 1 [IA] react with copper [II] oxide to give copper.
Give reasons for the following:
A mixture of hydrogen and chlorine can be separated by passage through a porous pot.
Name the following
- A metal below iron but above copper in the activity series of metals which has no reaction with water.
- A metal which cannot be used for the preparation of hydrogen using dilute acids.
- The salt formed when aluminium reacts with potassium hydroxide, during the preparation of hydrogen from alkalis.
- A gaseous reducing agent which is basic in nature.
- A compound formed between hydrogen and an element from group 17 [VIIA] – period 3.