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Phosphine gas will be produced if phosphorous acid is subjected to___________________?
A. Oxidation C. Decomposition B. Reduction D. Both b & c…
The most electronegative element among the following is_________________?
A. Sb B. N C. As D. P Submitted by :- Jamil Ahmed
Which one of the followings possesses melting point below 0°C?
A. Nitrogen B. Phosphorus C. Carbon D. Bismuth Submitted by :- Jamil Ahmed
When sulphuric acid is treated with ethanol sulphuric acid behaves like________________?
A. an acid B. a dehydrating agent C. an oxidizing agent D. as sulphonating agent Submitted by :- Jamil Ahmed
The most powerful oxidizing agent among the halogens is__________________?
A. F2 B. Cl2 C. Br2 D. I2 Submitted by :- Jamil Ahmed
Vander Waals forces are stronger in_______________?
A. F2 B. Cl2 C. Br2 D. I2 Submitted by :- Jamil Ahmed
Among the halogens the rare element is________________?
A. Fluorine B. Chlorine C. Astatine D. Iodine Submitted by :- Jamil Ahmed
In which compound nitrogen has maximum oxidation state____________________?
A. N2O B. NO2 C. HNO2 D. HNO3 Submitted by :- Jamil Ahmed
Oxygen does not react with all except_________________?
A. Alkali B. Acid C. Water D. Metals Submitted by :- Jamil Ahmed
The gas which cannot be dried by conc. H2SO4 ?
A. SO2 B. H2S C. CO2 D. C2H4 Submitted by :- Jamil Ahmed