Question

which one of the following process give a compound?
a)Sodium is burnt in air .
b)Chalk and marble chips are ground together.
c)Mixing of sulphur with sodium chloride.
d)Addition of alcohol in water.
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Answer 1

Answer:

Option A✔✔✔✔✔✔✔✔

.................

Answer 2

${ \huge \fbox \pink {A}\fbox \blue {n} \fbox \purple {s} \fbox \green{w} \fbox \red {e} \fbox \orange {r}}$

Option a) Sodium is burnt in air

Reason:

Sodium is burnt in air is your answer because from the above options only Sodium gives a new compound by reacting with Oxygen (O2) and forms sodium oxide (Na₂O)

Equation:

Sodium reacts with Oxygen:

4 Na + O2 → 2 Na₂O

Additional info:

Sodium Oxide(Na₂O):-

• Sodium oxide molecules are made up of 2 Sodium (Na) cations and 1 Oxygen (O2) anion.

• Used in the production of Sodium hydroxide.

• Melting point: 1,132 °C

• Density: 2.27 g/cm³

• Boiling point: 1,950 °C.

Hope it helps ya!!

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