Advertisements
Advertisements
Question
Classify the substances given in Fig. 2.2 into elements and compounds
Advertisements
Solution
Elements – Cu, Zn, F2, O2, diamond (C), Hg
Compounds – CaCO3, H2O,
APPEARS IN
RELATED QUESTIONS
Define: Elements
Name: an Inert Gas
Indicate whether the following statement is true or false:
Ozone is a triatomic molecule
Tick (√) the correct alternative from the choice given for the following statement
The most ductile metal.
Write the names of elements from the following symbol:
Zn
Write the names of elements from the following symbol:
Cu
Write the names of elements from the following symbol:
Ir
‘An atom is the basic unit of an element’. Draw a diagram of an atom – divisible as seen today.
‘The modern periodic table consists of elements arranged according to their increasing atomic numbers’. With reference to elements with atomic numbers 1 to 20 only in the periodic table – differentiate them into – metallic elements, metalloids, non-metals & noble gases.
Select the correct answer from the choice given below to complete the sentence :
Dust in air is an example of _________ mixture.
