When chlorine water is exposed to sunlight, the colour change that occurs is
When chlorine water is exposed to sunlight, the colour change that occurs is Options (a) colourless to brown (b) brown…
7 years ago
P Block Elements in Group 15
In Ramsay and Rayleigh’s isolation on noble gases from air,the nitrogen of the
In Ramsay and Rayleigh's isolation on noble gases from air, the nitrogen of the air is finally converted into Options…
7 years ago
Use of chlorofluoro carbons is not encouraged because
Use of chlorofluoro carbons is not encouraged because Options (a) they are harmful to the eyes of people that use…
7 years ago
Aqueous solutions of hydrogen sulphide and sulphur dioxide when mixed together
Aqueous solutions of hydrogen sulphide and sulphur dioxide when mixed together, yield Options (a) sulphur trioxide and water (b) hydrogen…
7 years ago
The most efficient agent for the absorption of SO₃ is
The most efficient agent for the absorption of SO₃ is Options (a) 90% of H₂SO₄ (b) 80% of H₂SO₄ (c)…
7 years ago
The percentage of nitrogen in urea is
The percentage of nitrogen in urea is Options (a) 46 (b) 59 (c) 25 (d) 54 Correct Answer: 46Explanation:The percentage…
7 years ago
P₂O₅ is an anhydride of
P₂O₅ is an anhydride of Options (a) H₃PO₄ (b) H₂P₂O₇ (c) H₃PO₃ (d) HPO₃ Correct Answer: HPO₃Explanation:No explanation available. Be…
7 years ago
In the process of nitration, the electrophile formed is
In the process of nitration, the electrophile formed is Options (a) NO₂⁺ (b) NO₃⁻ (c) NO₂⁻ (d) NO⁺ Correct Answer:…
7 years ago
Perchloric acid is prepared by the action of concentrated sulphuric acid on
Perchloric acid is prepared by the action of concentrated sulphuric acid on Options (a) sodium chloride (b) barium chloride (c)…
7 years ago
The oxyacid of sulphur that contains a lone pair of electrons on sulphur is
The oxyacid of sulphur that contains a lone pair of electrons on sulphur is Options (a) sulphurous acid (b) sulphuric…
7 years ago