Chemistry - 9 Chapter - 1
Chemistry an Introduction Test - 11

1. Jabir-Bin-Haiyan prepared ______________ (Royal water) to dissolve gold.


2. Abu-Mansoor was familiar with ?.


3. Abu-Mansoor knew the chemical composition of plaster of Paris and its use in________.




4. Abu-Rehan Muhammad Al-Beruni worked out eighteen precious stones and metals and determined their specific _______.


5. Bu ali Sina was an expert of many scientific disciplines. He studied the properties of ________.


6. The period of scientific advancements of the Muslims extend upto _____th century. ( Type all figures as figures ie 1,2......etc )


7. Muslim scientists led the world in science and technology for more than _______ years.


8. The knowledge treasures of the Muslim countries of the east and those of Muslim ______ were then transferred to Europe.




9. Sulphuric acid was discovered by ?



10. The information obtained from observation is called a?




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