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NIKITA PUBLICATION-P-BLOCK ELEMENT -Competitive Exam
- Noble gases are
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- In which of the following arrangements, the sequence is not strictly a...
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- Each of the following is true for white and red phosphorus except that...
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- Which of the following is not known
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- Which one of the following elements is most metallic?
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- Which of the following oxides of nitrogen is the anhydride of HNO(3)?
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- Dissociatuion of H(3)PO(4) occurs in following stages
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- Nitrogen forms how many oxides
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- The element which catches fire in air at 30^@C and is stored under wat...
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- A solution of ammonia in water contains
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- Which of the following is oxidised in air?
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- Which of the following exist in polymeric form ?
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- Which nitrogen trihalides is least basic
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- Which of the following oxide of nitrogen is a coloured gas?
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- Which oxide does not act as a reducing agent?
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- The basic character of hydrides of the 15th-group elements decreases i...
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- The strongest base is
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- Which has the lowest boiling point?
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- Of the following, the most acidic is
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- The correct order of the acidic nature of oxides is in the order
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- Nitrogen is relatively inactive element because is atom has a stable e...
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