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MBD PUBLICATION-p-BLOCK ELEMENTS-QUESTION BANK
- The number of pi- bonds present in NCl3 is:
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- Which is used to remove N2 from air:
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- In PCl5 molecule, P is :
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- Pure N2 can be obtained by:.
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- Liquor ammonia is:
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- Which element reacts with chlorine to give pentachloride ?
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- NCl3 on hydrolysis yields:
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- 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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- Sulphuric acid reacts with PCl5 to yield.
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