Matter Around Us Pure? is the chapter 2 of Class 9 NCERT book. The MCQ Question is given below for Class 9 Chapter 2 Is Matter Around Us Pure?
What is the major compound present in Common Salt?
(c) CaCl 2
The right option is (b) – NaCl
What is NaCl?
NaCl is the chemical formula of Sodium chloride. It is commonly known as salt. It representing a 1:1 ratio of sodium and chloride ions. With molar masses of 22.99 and 35.45 g/mol respectively, 100 g of NaCl contains 39.34 g Na and 60.66 g Cl.
Is NaCl an ionic compound?
Yes, NaCl is an ionic compound.
What are the uses of NaCl?
In addition to the familiar domestic uses of salt, more dominant applications of the approximately 250 million tonnes per year production (2008 data) include chemicals and de-icing.
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