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The decomposition of H2O2 may be checked by adding a small quantity of phosphoric acid. This is an example of:
(b) H3PO4, acetamide acts as negative catalyst for decomposition of H2O2.
When dilute aqueous solution of AgNO3 (excess) is added to KI solution, positively charged sol particles of AgI are formed due to adsorption of ion:
(b) Sol particles possess the tendency to absorb preferentially the common ion present in solution e.g., fog, mist, cloud.
Milk contains a protein that is very good for health. The protein is:
(d) Casein is the important protein of milk.
Emulsions of polyvinylacetate are used in:
An application in paints based industry
The simultaneous outcome of internal liquid from gels is called:
(a) It is the definition of synerisis, a property of gel.
The charge on As2S3 sol is due to the adsorption of:
(d) sol particles adsorb common ion (s2−) on them to acquire negative charge.
It follows the Hardy-Schulz law which states : 'the greater the valence of the flocculating ion, the greater will be its coagulating property.
Pd can absorb 900 times its volume of hydrogen. This called:
(d) Adsorption and occlusion have same meaning.
The Brownian motion is due to:
the dispersed phase particles bear continuous collisions with dispersion medium to show irregular motion in sol state
The phenomenon in which adsorption and absorption takes place simultaneously is called:
(b) Both process of adsorption and absorption taking place simultaneously are referred as sorption.
Cloud bursts due to:
(d) Clouds are water-dispersed in air sol carrying + ve and - ve charge on water molecules.
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The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.