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MBD PUBLICATION-p-BLOCK ELEMENTS-QUESTION BANK
- An important method of fixation of atmospheric N2 is:
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- The essential element of nitrogen fixation is:
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- Passing H2S gas through nitric acid produces:
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- Nitric acid is generally light yellow due to the presence of:
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- Which does not give ammonia with water?
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- In the statement of leukaemia is used.
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- Metaphosphoric acid is:
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- The best absorbent for ammonia is:
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- A hydride of nitrogen having lowest oxidation number of N:
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- Which is not an acid salt ?
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- One mole of calcium phosphide on reaction with excess water gives:
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- Sodium nitrate on heating with zinc dust and caustic soda gives
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- Ammonia reacts with excess of chlorine to form:
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- Ammonia was first prepared by:
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- Nitric acid may be kept in a bottle of:
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- The hydroxide of which metal is soluble in excess of ammonia:
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- When SO2 reacts with water, the compound formed is
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- Non- combustible hydride is:
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- The catalyst used in Haber's process of NH3 is:
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- The gas which is absorbed by ferrous sulphate solution giving blackish...
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