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NIKITA PUBLICATION-P-BLOCK ELEMENT -Competitive Exam
- Which of the following is not correct for N2O?
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- The percentage of p-character in the orbitals forming p-p bonds in P4 ...
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- Which of the following phosphorus is most stable?
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- The least stable hydride of 15th group elements is
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- With reference to protonic acids, which of the following statements is...
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- One of the acid listed below is formed P(2)O-(3) and the rest are form...
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- Hypophosphorus acid is
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- The number of hydroxyl group in pyrophosphoric acid is
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- Correct order of decreasing thermal stability is
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- calcium cyanamide on treatment with steam under pressure gives ammonia...
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- Which of the following has the highest proton affinity ?
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- Atoms in P4 molecule of white phosphorus are arranged regularly in the...
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- In case of nitrogen, NCl(3) is possible but not NCI5 gwhile in case of...
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- Liquid ammonia is used to refrigeration because of its
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- The decreasing values of bond angles from NH3 (106^@) to SbH3 ( 101^@...
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- The structural formula of hypophosphorous acid is
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- Aquaregia is
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- Which of the following set of properties belong to PCI(5)?
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- In NH(3) and PH3, the common is
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- CaC(2)+N(2) to A, "Product A is "
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