NEET UG CHEMISTRY MCQ: SURFACE CHEMISTRY

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Isoelectric point is the pH at which colloidal particles

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Correct option: C

Coagulate

Option C (Coagulate) is correct because at the isoelectric point, the net charge of the colloidal particles is zero, leading to reduced electrostatic repulsion and subsequent coagulation.

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A cationic colloidal electrolyte forms micelle at

10^{-3} \mathrm{M}

concentration in water. Its

1 \mathrm{~mm}^3

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2 \times 10^{13}

micelle structures. What is the number of cations contained in one micelle? Take

\mathrm{N}_{\mathrm{A}}=6 \times 10^{23}

. Graph between

\log \frac{{x}}{{m}}

and

\log {P}

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\theta=45^{\circ}

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0.5

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\log {k}= 0.699,

the amount of solute adsorbed per

\mathrm{g}

of adsorbent will be: For adsorption of gas on solid surface, the plots of

\log \;x/m\mathrm{ } \;vs.

\log \;P

is linear with a slope equal to : Most suitable salt which can be used for efficient clotting of blood will be The density of gold is

19\;\mathrm{g/c}{\mathrm{m}^3}

. If

{1.9 \times {{10}^{ - 4}}\;\mathrm{g}}

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10\;\mathrm{ }nm

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m{m^3}

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