Which of the following is a Lewis acid
Which of the following is a Lewis acid Options (a) Cl⁻ (b) H₃O⁺ (c) BF₃ (d) C₂H₅OH Correct Answer: BF₃Explanation:No…
7 years ago
AFMC2011
Aluminium deposited vapours on glass forms a good mirror essentially because
Aluminium deposited vapours on glass forms a good mirror essentially because Options (a) it has better shine than Ag (b)…
7 years ago
Aluminium oxide is not reduced by chemical reaction since
Aluminium oxide is not reduced by chemical reaction since Options (a) reducing agent contaminate (b) the process pollute the environment…
7 years ago
In Gabriel phthalimide synthesis, the compound obtained is
In Gabriel phthalimide synthesis, the compound obtained is Options (a) p-amine (b) p-alcohol (c) sec-amine (d) amino alcohol Correct Answer:…
7 years ago
In Lassaigne’s test red colour precipitate is obtained which is due to formation
In Lassaigne's test red colour precipitate is obtained which is due to formation of Options (a) FeCNS (b) Fe(CNS)₂ (c)…
7 years ago
The change in oxidation state of sulphur when sulphur dioxide is passed
The change in oxidation state of sulphur when sulphur dioxide is passed in an acidified K₂Cr₂O₇ solution is from Options…
7 years ago
Which among the following is an extensive property of the system
Which among the following is an extensive property of the system Options (a) Temperature (b) volume (c) Refractive index (d)…
7 years ago
Biuret test is not given by
Biuret test is not given by Options (a) proteins (b) carbohydrates (c) polypeptides (d) urea Correct Answer: carbohydratesExplanation:No explanation available.…
7 years ago
Aromatic hydrocarbon shows mostly
Aromatic hydrocarbon shows mostly Options (a) substitution electrophilic reactions (b) addition electrophilic reactions (c) substitution nucleophilic reactions (d) addition nucleophilic…
7 years ago
The oxidation number of oxygen in O₂PtF₆ is
The oxidation number of oxygen in O₂PtF₆ is Options (a) zero (b) 1/2 (c) 1 (d) -1/2 Correct Answer: 1/2Explanation:No…
7 years ago