1.

Classify the following as element and compound : i. Mercuric oxide ii. Helium gas iii. Wateriv. Table salt v. Iodine vi. Mercury vii. Oxygen viii. Nitrogen

Answer»
No.MaterialElement or compound
i.Mercuric oxideCompound
ii.Helium gasElement
iii.WaterCompound
iv.Table saltCompound
v.IodineElement
vi.MercuryElement
vii.OxygenElement
viii.NitrogenElement


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