Purity, Formulations & Chromatography (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is a formulation?
What is a formulation?
A carefully designed mixture
Why are chemicals mixed in exact amounts in formulations?
Why are chemicals mixed in exact amounts in formulations?
To ensure the product has right properties
What can happen if an ingredient is added in the wrong amount to a formulation?
What can happen if an ingredient is added in the wrong amount to a formulation?
The product might become unsafe
What is the role of pigment in paint?
What is the role of pigment in paint?
To give paint its colour
Which metal oxide is used as a pigment in white paints?
Which metal oxide is used as a pigment in white paints?
Titanium oxide
What does the solvent control in paint?
What does the solvent control in paint?
The thickness (viscosity) of paint
What happens to the solvent when paint is applied?
What happens to the solvent when paint is applied?
It evaporates
What is the role of binder in paint?
What is the role of binder in paint?
To make pigment stick to surface
What do additives in paint provide?
What do additives in paint provide?
Special features like gloss or glow
Why are medicines formulated carefully?
Why are medicines formulated carefully?
To ensure they're safe and effective
What property do metal alloys have compared to individual metals?
What property do metal alloys have compared to individual metals?
They are stronger or more durable
What properties are controlled in drink formulations?
What properties are controlled in drink formulations?
Taste, texture, and shelf life