Advertisements
Advertisements
Question
Define the term ‘compound’. In the compound carbon dioxide – the elements carbon & oxygen are combined in a fixed ratio. Explain.
Advertisements
Solution
A compound is a pure substance made up of two or more different elements [atoms] combined chemically in a fixed proportion.
Since one carbon atom and two oxygen atoms combine to generate one carbon dioxide molecule (CO2), we refer to the combination of carbon and oxygen as occurring in a fixed ratio of 1 : 2 to form carbon dioxide.
APPEARS IN
RELATED QUESTIONS
Fill in the blank
Use of a ................. to separate the components of a mixture of solids is based on the difference in the size of the components
Give Two Examples for Each of the Following: Non-metals
Differentiate between:
Homogenous and heterogenous substances
Find the atomicity of the Following molecule:
Aluminium Suiphide
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – a gas with a pungent, choking odour which is lighter than air
Give the name of the radical - SO4
Select the correct answer from the choice given below.
The unreactive non-metallic element
Write the names of elements from the following symbol:
Cu
______ is the life-giving element is the air.
How are elements classified?
