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MBD PUBLICATION-p-BLOCK ELEMENTS-QUESTION BANK
- Phosphine is generally prepared in the laboratory:
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- Ammonium dichromate is used in some fireworks. The green coloured powd...
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- P2O5 when treated with cold water gives:
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- Which acid possesses oxidizing, reducing and complex forming propertie...
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- White phosphorus is:
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- PCl5 is prepared by the action of Cl2 on:
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- Phosphorus when exposed to air burns spontaneously because:
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- Phosphine is not obtained by the reaction:
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- Orthophosphoric acid on heating at 600^∘ C gives:
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- Mixture used on tips of matchsticks is:
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- Which element is most metallic:
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- Aqua-regia is a mixture of:
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- Arsine is a:
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- P2O5 is used extensively as a:
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- The non-existent compound is:
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- In pyrophosphoric acid the number of hydroxy groups present are:
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- Concentrated nitric acid on heating decomposes to give:
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- Phosphoric acid on reaction with sufficient quantity of NaOH gives:
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- Which one of the following cations does not form a complex with ammoni...
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- Which pentafluorides cannot be formed ?
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