Calcination is used in metallurgy to remove
Calcination is used in metallurgy to remove Options (a) CO₂ and H₂S (b) H₂O and SiO₂ (c) H₂O and H₂S…
7 years ago
Surface Chemistry and Isolation of Elements
Colloidal solution of gold is prepared by
Colloidal solution of gold is prepared by Options (a) colloidal mill (b) double decomposition method (c) Bredig's method (d) Peptization…
7 years ago
Which one of the following is an example of heterogenous catalysis
Which one of the following is an example of heterogenous catalysis Options (a) Oxidation of SO₂ and SO₃ by NO…
7 years ago
Which has least gold number
Which has least gold number Options (a) Gelatin (b) Starch (c) Albumin (d) Blood Correct Answer: Gelatin Explanation:No explanation available.…
7 years ago
Wood charcoal is used to decolourise sugar because it
Wood charcoal is used to decolourise sugar because it Options (a) adsorbs coloured material (b) adsorbs decoloured material (c) reduces…
7 years ago
On palladium the adsorption of hydrogen is known as
On palladium the adsorption of hydrogen is known as Options (a) reduction (b) hydrogenation (c) occlusion (d) dehydrogenation Correct Answer:…
7 years ago
Choose the incorrect statement in respect of physisorption
Choose the incorrect statement in respect of physisorption Options (a) It is not specific in nature (b) It arises because…
7 years ago
Which one of the following is correctly matched
Which one of the following is correctly matched Options (a) Emulsion-smoke (b) Gel-butter (c) Aerosol-hair cream (d) Sol-whipped cream Correct…
7 years ago
Hair cream is an example of
Hair cream is an example of Options (a) gel (b) sol (c) emulsion (d) foam Correct Answer: emulsionExplanation:No explanation available.…
7 years ago
Shape-selective catalysis is a reaction catalysed by
Shape-selective catalysis is a reaction catalysed by Options (a) zeolites (b) enzymes (c) platinum (d) Zeigler-Natta catalyst Correct Answer: zeolitesExplanation:Zeolit…
7 years ago