Hamad Group VA and VIA Elements 24/05/2020 A. N2O3 B. NO2 C. NO D. N2O Related Mcqs: Phosphorous acid upon thermal decomposition yields phosphoric acid and____________________?A. Phosphine B. Phosphorus C. Water D. Phosphorus pentoxide... P2O5 is a hygroscopic powder which sublimes at______________?A. 260°C B. 360°C C. 630°C D. 620°C... Phosphoric acid is a weak acid and its basicity is____________________?A. 1 B. 3 C. zero D. 2... Which one of following is not a property of pure quartz ?A. Coloured solid B. Brittle C. Hard D. All of above... The composition of brown ring in nitrate test is_________________?A. FeSO4.No B. FeSO4.No2 C. FeSO4.No3 D. FeSO4.N2o...
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