Which of the following can be a possible contact angle with water for a colloidal particle?

$0^{\circ}$

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$30^{\circ}$

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$60^{\circ}$

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$100^{\circ}$

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Solution

The correct option is D
$100^{\circ}$

Hydrophobic materials always have a contact angle large than $90^{\circ}$ with water as they are repelled by water.

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Similar questions

A triangle with the angles $30^{\circ}$ , $90^{\circ}$ and $60^{\circ}$ can be classified under which category?

A \to C \to D \to B

Δ s (A \to C) = 50 e V

Δ s (C \to D) = 30 e V

Δ s (B \to D) = 20 e V

A \to B

Using which of the following, is it not possible to construct a $60^{\circ}$ angle?

∠ A

^{o}

∠ B

^{o}

∠ A

^{o}

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