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R G PUBLICATION-THE p-BLOCK ELEMENTS-EXERCISE
- Maximum covalency of nitrogen is.
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- On heating ammonium dichromate, the gas evolved is
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- Nitrogen is relatively inactive element be-cause.
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- The laughing gas
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- Which is the correct order of basicity
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- By which of the following NO2 gas cannot be obtained on heating?
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- One of the catalysts used in the production of NH3 is
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- The formula of hyponitrous acid is
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- The starting material for the preparation of HNO3 acid.
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- Brown ring test is used to detect the acid radical.
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- The polymeric phosphorus is
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- One mole of Calcium phosphide on reaction with excess of water gives
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- When phoshporus acid is heated with bro-mine in a sealed tube it produ...
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- The formula of ozone is O3, it is
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- The most stable hydride is
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- Of the following which one is a true perox-ide?
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- Ozone is prepared by passing silent electric discharge through oxygen....
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- Group 16 elements form hydrides of the type MH2. Their correct stabili...
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- There is O-O bond in.
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- An anti-chlor agent is
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