MEDIUM
Earn 100
What are the different methods used in the separation of mixtures?
Important Questions on Basic Analytical Techniques
EASY
_____(Molecule/Atom) is the smallest particle of a compound.
EASY
_____(Compound/Mixture) is formed by chemical combination of two or more elements.
EASY
_____(Mixture/Compound) retains the properties of its components.
EASY
The chemical formula of sulphuric acid is _____.
:
:
:
Enter your correct answer as or .
MEDIUM
Chemical symbol for the element silver is _____ (S/Ag)
EASY
Elements with atomicity two are called _____ (diatomic / monoatomic).
EASY
Which of these is a mixture?
EASY
A pure substance consists of only one type of
MEDIUM
Which among the following taste sour, bitter and sweet: salt, lemon juice, curd, baking soda, common salt, sugar, amla.
MEDIUM
Which type of chemical substances are generally found at home?
HARD
We all know that the chemicals in our laboratory are very dangerous. Thus, safety measures need to be adopted while working in a lab. List down some of these measures and follow them when you visit your laboratory.
EASY
Why do different substances have different tastes?
HARD
Why are the working tables and shelves in chemistry laboratory covered with tiles and not wood or metals?
EASY
Give three safety precautions you should take when working with substances like acids and bases.
MEDIUM
Give reasons for the following:
We must not taste any substance without knowing about its chemical nature.
EASY
What do you understand by the term 'chemicals'?
EASY
How are chemicals important in our daily lives?
