Which one of the following is an example of heterogenous catalysis
Options
(a) Oxidation of SO₂ and SO₃ by NO (b) Hydrolysis of ethyl acetate by dilute H₂SO₄ (c) Inversion of cane suger […]
Which has least gold number
Options
(a) Gelatin (b) Starch (c) Albumin (d) Blood
Correct Answer:
Gelatin
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Wood charcoal is used to decolourise sugar because it
Options
(a) adsorbs coloured material (b) adsorbs decoloured material (c) reduces coloured material (d) none of these
Correct Answer:
adsorbs coloured material
Explanation:
It has […]
On palladium the adsorption of hydrogen is known as
Options
(a) reduction (b) hydrogenation (c) occlusion (d) dehydrogenation
Correct Answer:
occlusion
Explanation:
This is known as occlusion.
Choose the incorrect statement in respect of physisorption
Options
(a) It is not specific in nature (b) It arises because of van der Waal’s forces (c) It is reversible in nature (d) Enthalpy […]
Which one of the following is correctly matched
Options
(a) Emulsion-smoke (b) Gel-butter (c) Aerosol-hair cream (d) Sol-whipped cream
Correct Answer:
Gel-butter
Explanation:
No explanation available. Be the first to write the explanation […]
Hair cream is an example of
Options
(a) gel (b) sol (c) emulsion (d) foam
Correct Answer:
emulsion
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Shape-selective catalysis is a reaction catalysed by
Options
(a) zeolites (b) enzymes (c) platinum (d) Zeigler-Natta catalyst
Correct Answer:
zeolites
Explanation:
Zeolit is a most widely studied shape selective catalyst. Shape selectivity of […]
Which one of the following is a false statement
Options
(a) Cell fluid is an example of sol (b) Butter is an example of gel (c) Cheese is an example of emulsion (d) […]
If the adsorbate is held on a surface by weak Van der Walls forces, the absorption process is called
Options
(a) physical adsorption (b) chemical adsorption (c) heat of adsorption (d) enthalpy of […]
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