Advertisements
Advertisements
Question
Select the correct answer to the statement given below:
A compound containing carbon, oxygen and calcium.
Options
Chalk
Oxygen
Silicon
Bromine
Nitrous oxide
Advertisements
Solution
Chalk
APPEARS IN
RELATED QUESTIONS
Name a soft metal.
Classify the following substances into compounds and mixtures:
Fill in the blank
Chalk powder dissolved in water is an example of a Chalk powder dissolved in water is an example of a _________.
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Vinegar
State four differences between compounds and mixtures.
Give two examples of Metalloids.
Mention three gaseous elements and write their molecular formulae
Answer the following question:
When iron is mixed with sulphur at room temperature, it does not form a compound. Why?
Fill in the blank
_________ refers to the number of atoms in the molecule of an element
Differentiate between the terms –
elements, compounds & mixtures.
Give the name of the radical - NO3
Write the names of elements from the following symbol:
Cd
Write the names of elements from the following symbol:
Br
Write the names of elements from the following symbol:
Pt
‘An atom is the basic unit of an element’. Draw a diagram of an atom – divisible as seen today.
State five different characteristics of compounds.
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.
Classify the substances given in Fig. 2.2 into elements and compounds

Name the two elements which are derived from the country.
