Chapter 8: Nature of Matter - Solutions
Nature of Matter - Solutions Chapter 8: Nature of Matter - Solutions Question 1 Consider the following reaction where two substances, A and B, combine to form a product C. Assume that A and B cannot be broken down into simpler substances by chemical reactions. Based on this information, which of the following statements is correct?
A + B = C
(i) A, B, and C are all compounds and only C has a fixed composition. (ii) C is a compound, and A and B have a fixed composition. (iii) A and B are compounds, and C has a fixed composition. (iv) A and B are elements, C is a compound, and has a fixed composition. Answer: (iv) A and B are elements, C is a compound, and has a fixed composition. Question 2 Assertion: Air is a mixture. Reason: A mixture is formed when two or more substances are mixed, without undergoing any chemical change. (i) Both Assertion and Reason are true and Reason is the correct explanation for Assertion. (ii) Both Assertion and Reason are true, but Reason is not the c…