Chemical Bonding — Chemistry STD 10 — Question

Name : A base which is not alkali

Give one example in the following case:
A basic oxide which is insoluble in water.

What is added to steel to make it stainless steel?

Define a covalent bond.

Explain why hydrogen chloride gas is not collected over water.

Name a mixed salt.

Explain the following:
Ammonia is present in sewage water.

Name the catalyst used in the process.

Name the following:
The compound formed by the reaction between calcium oxide and silica.

The list of some organic compounds is given below:
Ethanol, ethane, methane, ethyne and ethene
From the above list, name a compound:
Which forms methanoic acid on oxidation in the presence of copper at 200°C