(a)
Interpretation:
The term domain needs to be defined.
Concept introduction:
Electron domain is defined as number of lone pairs of electrons or bond pair of electrons around particular atom or molecule.
(b)
Interpretation:
The term floatation needs to be defined.
Concept introduction:
Flotation process is used to separate hydrophobic solid from a hydrophilic substance using air bubbles.
(c)
Interpretation:
The term leaching needs to be defined.
Concept introduction:
In the leaching process, the substances are extracted from solid by dissolving them into liquid.
(d)
Interpretation:
The term amalgam needs to be defined.
Concept introduction:
Amalgam is used to define an alloy which contains mercury as one of the metals it contained. Any alloy of mercury is known as amalgam. The difference is based on the type and amount of the other metal present in it.
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