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MBD PUBLICATION-p-BLOCK ELEMENTS-QUESTION BANK
- Solid PCl(5) , exists as
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- Nitric acid whether dilluted or concentrated :
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- Which is not the property of nitrogen
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- I2 on rubbing with liquor NH3 forms with explosion:
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- The lone pair present on N family hydrides more easily participates in...
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- Red P is prepared from white P by heating in vacuum
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- Nitrogen does not combine directly with:
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- Arsenic acid is:
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- Conc. HNO3 reacts with iron to:
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- On heating a salt with NaOH, smell of NH3 is obtained, The salt contai...
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- The number of P-O-P bonds in cyclic metaphosphoric acid is:
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- Most abundant element in earth crust is
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- SO2 oxidises
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- Bleaching action of SO2 is due to :
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- SO2 reduces:
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- Sulphur molecule is
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- The bond angle in H2S is:
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- Which sulphides are not precipitated in acid or alkaline medium.
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- Concentrated sulphuric acid does not act as:
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- Ozone is manufactured by
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