福建省建瓯市九年级化学上学期期第一次月考试题(无答案)（The first monthly examination of grade nine chemistry in Fujian City, Jianou province (no answer)）.docVIP

福建省建瓯市九年级化学上学期期第一次月考试题(无答案)（The first monthly examination of grade nine chemistry in Fujian City, Jianou province (no answer)） The first monthly examination of chemistry in the Middle School of Jianou in grade nine of Fujian City Total score: 100 minutes, volume time: 60 minutes I. choice questions (30 points). Every day there is only one option to accept. The correct answer fill in the form) One Two Three Four Five Six Seven Eight Nine Ten Eleven Twelve Thirteen Fourteen Fifteen 1.. The following changes in life, which belong to the chemical changes, are... A. glass broken, B. ice melted, C. alcohol burning, D. iron wire bent 2., the largest volume fraction in air composition is A. carbon dioxide, B., nitrogen, C., oxygen, D., rare gas 3. the following experimental operation is correct:... A. dumped reagent B. instillment reagent C. D. liquid heating cylinder readings 4. the following practices in life, which are not conducive to water conservation, are... A. B. Tao Mishui watering to flush the toilet with water washed clothes C. overnight water, directly throw away D., wash your hands and soap, temporarily close the tap 5., for identification of three bottles of gas, respectively, containing air, oxygen and carbon dioxide, the method should be chosen A. will pass the gas into the water respectively, and B. will pass the gas into the clear lime water respectively C. to see the color, you can judge D. will burn wood sticks into three bottles of gas 6. laboratory preparation of oxygen can be roughly divided into the following steps: light the alcohol lamp; the air tightness check device; the Potassium Permanganate will be loaded into a test tube, the tube plug in a cotton ball, with a plug plugged tube with a catheter, and fix it on the iron stand; the oxygen collecting drainage method; the extinguished the alcohol lamp; the catheter is removed from the tank. The correct sequence of operations is () The 1 4 5 6 A. 2 3 4 5 6 B. of C. 3 1 4 5 6 2 3 4 5 6 D. II. 7. the