Question

v) Clean the surface of magnesium ribbon before burning as it gets covered with oxide layer.
(vi) The iron nails used in the reaction of iron nails with copper sulphate solution in water, should be clean
and rust free.
(vii) Always use holder while burning magnesium ribbon.
(viii) Ignite the evolved gas very carefully in the case of reaction of zinc with dilute sulphuric acid as
hydrogen formed an explosive mixture with oxygen.
(ix) White powder of magnesium oxide should not be touched or inhaled.
(x) Tilt the test-tube slightly while heating the test-tube.​

Answer 1

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Answer 2

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