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MODERN PUBLICATION-GROUP 15 ELEMENTS-EXERCISE
- Which element does not form stable diatomic molecules ?
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- Which reagent can separate nitric oxide from nitrous oxide ?
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- Each of the following is true about white and red phosphorus except th...
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- The gas which is supporter of combustion is:
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- The oxide which is solid at room temperature is:
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- Bones glow in the dark. This is due to:
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- When ammonia is dissolved in water:
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- A compound which leaves behind no residue on heating is :
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- Which one of the following formulae does not represent a salt derived ...
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- The strongest oxidising agent is:
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- The colourless gas liberated by passing excess of chlorine through NH3...
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- Good conductor of electricity is:
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- Ammonia is soluble in water because it is:
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- In the compound of type ECl3 where E=B, P As, or Bi, the angle Cl-E-Cl...
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- Anhydride of nitric acid isand anhydride of phosphoric acid is.
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- Fuming nitric acid is:
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- Why SO2 gas cannot be collected over water?
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- The nitrate which when heated gives off a gas or a mixture of gases wh...
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- Lead nitrate on heating gives lead oxide, nitrogen dioxide and oxygen....
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- Phosphorus is manufactured by heatingin a furnace.
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