Question

(i) why should we heat mixture of iron filling and sulphur in china dish ?
(ii) why we should wash our hands properly with soap after the experiment.?

Answer 1

2 answer

we should wash our hand because in experiment if any chemicals falls on our hand it may get diseases

Answer 2

1) we should always heat a mixture of iron filling and sulphur in China dish because it is risk less because it is insulator of heat so it can't burn Us and it is easy to heat Iron filling and sulphur in China dish in comparison to other
2) we should wash our hands properly with soap after experiment because when we do experiment retouch various types of chemicals, acids, base etc. which can harm our skin very badly so it is an advise to wash our hands properly with so after experiment only for your skin it doesn't mean anymore .
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