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SHARAM PUBLICATION-GROUP 15 ELEMENTS (NITROGEN FAMILY-EXERCISE
- Which form of phosphorus is most stable?
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- Which of the following does not exists?
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- Which of the following is most explosive?
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- Which of the following oxides combines with Fe(II) ions to form a brow...
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- Oxidation state of nitrogen in NH3 is
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- The least stable hydride of 15th group elements is
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- A hydride of nitrogen which is acidic is
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- The element which catches fire in air at 30^@C and is stored under wat...
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- Which of the following is more acidic ?
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- Which one of the following is Pyrophosporic acid ?
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- H3PO3 is:
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- Which element is most metallic:
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- Which of the following is least reactive ?
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- Nitrogen is produced by heating :
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- Phosphide ion has the electronic structure similar to that of:
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- A hydride of nitrogen having lowest oxidation number of N:
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- Which does not give ammonia with water?
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- White smoke is formed when ammonia gas meets with:
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- The catalyst used in the manufacture of HNO3 from NH3 is :
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- PCl5 exists but NCl5 does not because,
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