Question

Classify the following as element and compound : 

i. Mercuric oxide 

ii. Helium gas 

iii. Water

iv. Table salt 

v. Iodine 

vi. Mercury 

vii. Oxygen 

viii. Nitrogen

Answer 1

No.	Material	Element or compound
i.	Mercuric oxide	Compound
ii.	Helium gas	Element
iii.	Water	Compound
iv.	Table salt	Compound
v.	Iodine	Element
vi.	Mercury	Element
vii.	Oxygen	Element
viii.	Nitrogen	Element