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Surface Chemistry
Long Answer Type
151.
Define the terms colloid and colloidal state. How does the theory of selective adsorption explain the origin of charge on colloidal particles?
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152.
If solid is dispersed in a liquid, the colloid is termed _______ while if a liquid is dispersed in solid the colloid is termed _______.
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153.
In an aerosol __________ is dispersed in ________.
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154.
In foams,________ is dispersed in __________.
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155.
The process of purifying a colloidal solution by placing it in a parchment bag kept in water is called _________.
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156.
The effect making visible the colloidal particles under an ultramicroscope is called _________.
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157.
Blood is a _______ charged sol.
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158.
Arsenic sulphide sol carries a _________ charge.
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159.
______ Sols are irreversible.
lyophobic
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160.
Milk is an example of _______.
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