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CHAPTER EIGHTEEN

CHAPTER EIGHTEEN

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INTRODUCTION TO CHEMISTRY

  Q - 1)    Define chemistry? Write the name of its branches: Ans: Chemistry is the branch of science that deals with the properties, compositions and structure of matter. It also deals with principles and the laws governing the changes involved in the matter. The names of its branches are as follow: 1.        Physical chemistry 2.        Organic chemistry 3.        Inorganic chemistry 4.        Bio chemistry 5.        Analytical chemistry 6.        Industrial or applies chemistry 7.        Nuclear chemistry 8.        Polymeric chemistry 9.        Environmental chemistry ...
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Scientific method

  Q - 1)    What is Scientific method? Write the name of its four stages and describe them: Scientific Method: A specific method that is used to search for truth or facts. And: It is based on observation, hypothesis, theory and scientific laws . Observation: It is the basic tool for explaining a phenomenon but it may vary from person to person according to his skill. Hypothesis: The statement may be possible answer of the problems after observation.  It is also the trail idea for accumulating of more knowledge or facts. Theory: It is the verified results by hypothesis, which is obtained with the help of careful experimentation. Scientific law: When a theory is tasted repeatedly and is found to fit according to facts, gave valued predictions is called Scientific law. Q - 2)    Write down the contribution of Muslim scientists in the field of Chemistry: Jabir – ibne – Hayyan: (721 – 803 A.D.) He is known as the father of chemistry. í ...
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