InterviewSolution
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1) Give reason :Test tubes are made of glass 2) Give reason : Practical's are very important in Chemistry |
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Answer» 1) TEST tubes intended for general chemical work are usually made of GLASS, for its relative resistance to HEAT. Tubes made from expansion-resistant glasses, mostly borosilicate glass or fused quartz, can withstand high temperatures up to several hundred DEGREES Celsius.2)These 'hands-on' activities support the development of practical skills, and help to shape students' understanding of scientific concepts and phenomena. A further consequence of experiencing practical work, particularly in chemistry, is the acquisition of an understanding of hazard, risk and safe workinghope this ans will help u!!! |
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