P4O10 is the anhydride of
H3PO2
H3PO3
H3PO4
H4P2O7
Additional Questions
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In the Dewar's method of separation of noble gases, the mixture of noble gases is kept in contact with coconut charcoal at 173 K. Which one of the following gaseous mixtures is not absorbed on to the charcoal? |
Answer |
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Which of the following statements regarding sulphur is incorrect? |
Answer |
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Of the following compounds the most acidic is |
Answer |
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The brown ring test for nitrates depends on |
Answer |
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Which of the following is used to prepare Cl2 gas at room temperature from concentrated HCl? |
Answer |
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Which one of the following is not true at room temperature andpressure |
Answer |
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The tendency of BF3, BCl3 and BBr3 to behave as Lewis acid decreases in the sequence: |
Answer |
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Which statement is NOT correct about fullerene C60? |
Answer |
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Which one of the following arrangements represents the correct order of least negative to most negative electron gain enthalpy for C, Ca, Al, F and O? |
Answer |
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In which of the following compounds, nitrogen exhibits highest oxidation state? |
Answer |