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

elements: helium gas, iodine, Mercury, oxygen, nitrogen.

compounds:mercuric oxide, water, table salt

Answer 2

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(I) MERCURIC OXIDE (HgO)

Mercuric oxide is a compound.

(II) HELIUM GAS (He)

Helium gas is a element.

(III) WATER (H₂O)

Water is a compound.

(IV) TABLE SALT (NaCl)

Table salt is a compound.

(V) IODINE (I)

Iodine is a element.

(VI) MERCURY (Hg)

Mercury is a element.

(VII) OXYGEN (O)

Oxygen is a element.

(VIII) NITROGEN (N)

Nitrogen is a element.

$\huge {\underline {\underline {\blue {\rm{Additional \: info : - }}}}}$

ELEMENT :

Element is a pure chemical substance which cannot be Broken down further by reactions

COMPOUND :

Compound is a substance of combination of Two (or) more elements bonded together and can be broken down into simpler substances