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MBD PUBLICATION-p-BLOCK ELEMENTS-QUESTION BANK
- Conc. HNO(3) , oxidises phosphorus to
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- Ammonia is generally manufactured for fertilizers by the reaction:
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- On heating copper nitrate stronglyis finally obtained.
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- Conc. HNO3 is heated with P2O5 to form:
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- NH3 gas is dried over:
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- Phosphorus pentoxide cannot be used to dry:
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- The hydrolysis of PCl3 produces:
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- H3PO2 has the name and basicity respectively:
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- The metal which forms amide on passing NH3 on it at 300^@ C is:
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- Which among the following gives nitrogen on heating:
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- Phosphine is produced by adding water to:
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- Nitrogen gas is absorbed by:
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- NO2 cannot be obtained by heating:
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- Fertilizer having the highest nitrogen percentage is:
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- Which compound does not give NH3 on heating ?
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- Nitrogen can be purified from the impurities of oxides of nitrogen and...
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- NH3 has a much higher boiling point than PH3 because:
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- Which of the following is not a drying and dehydrating agent ?
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- NO and NO2 are:
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- Superphosphate of lime is obtained from the reaction of:
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