Study of the First Element - Hydrogen — CHEMISTRY STD 9 — Question

Under what conditions can hydrogenbe made to combine with sulphur?
Name the products and write the equation for the reaction.

Name an element of group 18 which can form compounds.

The substance that can remove hydrogen and oxygen atoms in the ratio of 2:1(in the form of water) from the compound.

What do you understand by the Green House effect?

Which metal is preferred for collecting hydrogen from:
Write thebalanced equation
Hot water

Identify the following substance:
Gas C that is colourless and can be used as a bleaching agent.

Give the chemical names of three compounds and also state their trivial names.

If elements P, Q , R and S have same number of valence electrons, will they have same kind of chemical properties? Support your answer by one example.

In what respect does hydrogen differ from:
alkali metals