881 Which of the following sulphates is not soluble in water ? Chemistry Medium Full question → A Sodium sulphate B Potassium sulphate C Zinc sulphate D Barium sulphate
882 In which compound nitrogen has maximum oxidation state____________________? Chemistry Medium Full question → A N2O B NO2 C HNO2 D HNO3
883 Oxygen does not react with all except_________________? Chemistry Medium Full question → A Alkali B Acid C Water D Metals
884 FeSO4 forms brown ring with________________? Chemistry Medium Full question → A N2O3 B NO2 C NO D N2O
885 The gas which cannot be dried by conc. H2SO4 ? Chemistry Medium Full question → A SO2 B H2S C CO2 D C2H4
886 Which of the elements show passivity when treated with conc. HNO3? Chemistry Medium Full question → A Fe B A C Cr D All of the above
887 The element of group VIA which is a non-metal is________________? Chemistry Medium Full question → A S B Se C Te D Po
888 Which one of the following compounds usually smells like garlic ? Chemistry Medium Full question → A P2O3 B P2O5 C H3PO3 D All have same smell
889 The composition of brown ring in nitrate test is_________________? Chemistry Medium Full question → A FeSO4.No B FeSO4.No2 C FeSO4.No3 D FeSO4.N2o
890 Which one of the following is not the use of graphite ? Chemistry Medium Full question → A Lead pencils B Abrasive C Lubricant D Electrode of electrolytic cell
891 Which of the following does not contain phosphorus ? Chemistry Medium Full question → A Yolk of egg B Bone C Nerves D Steel
892 Which one of following is not a property of pure quartz ? Chemistry Medium Full question → A Coloured solid B Brittle C Hard D All of above
893 Phosphene gas will be produced if phosphorous acid is subjected to___________________? Chemistry Medium Full question → A Oxidation B Reduction C Decomposition D Both b & c
894 The most electronegative element among the following is_________________? Chemistry Medium Full question → A Sb B N C As D P
895 Which one of the followings possesses melting point below 0°C? Chemistry Medium Full question → A Nitrogen B Phosphorus C Carbon D Bismuth
896 When sulphuric acid is treated with ethanol sulphuric acid behaves like________________? Chemistry Medium Full question → A an acid B a dehydrating agent C an oxidizing agent D as sulphonating agent
897 Arsenic oxides are removed by passing through_________________? Chemistry Medium Full question → A Ferric hydroxide B Sodium hydroxide C Calcium hydroxide D Aluminium hydroxide
898 Oxygen and sulphur resemble in all except________________? Chemistry Medium Full question → A Electronic conviguration of valence shell electrons B Show allotropy C Polymeric D Show same oxidation state
899 The chemical composition of cinnabar is__________________? Chemistry Medium Full question → A ZnS B PbS C HgS D FeS
900 Which allotropic form of phosphorous is the most stable ? Chemistry Medium Full question → A White B black C red D Violet