Advertisements
Advertisements
Question
Give a reason for the following statement:
Components in a mixture are present in varying proportions and not in a fixed proportion.
Advertisements
Solution
A mixture is an impure substance containing more than one element or compound, mechanically mixed together in any proportion and the mixture retains the properties of its constituents i.e. elements or compounds.
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
Correct the following statement:
CO and Co both represents cobalt.
State four differences between compounds and mixtures.
Give the symbols of: Carbon, calcium, copper, chlorine, cobalt, argon.
Define: Atom
Name: Three different forms of carbon
Answer the following question:
When iron is mixed with sulphur at room temperature, it does not form a compound. Why?
Find the atomicity of the Following molecule:
Dinitrogen Oxide
Fill in the blank
_________ refers to the number of atoms in the molecule of an element
Complete the statement – an element is a pure substance made up of ____________ atoms.
Select the correct answer from the choice given below.
A group of atoms of elements
Write the names of elements from the following symbol:
Ir
Select the correct answer from A, B, C, D & E for the statement given below :
A diatomic molecule.
Select the correct answer from the choice given below to complete the sentence :
An example of a monoatomic molecule is ___________.
Name the process associated with the following
A fine beam of light entering through a small hole in a dark room illuminates the particles in its paths.
An element is sonorous and highly ductile. Under which category would you classify this element? What other characteristics do you expect the element to possess?
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which is required for combustion.
What is the Latin name of Sodium?
