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MBD PUBLICATION-p-BLOCK ELEMENTS-QUESTION BANK
- The metallic form of phosphorous is:
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- Nitrogen is an essential constituent of all:.
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- By warming a paste of bleaching powder with a solution of ammonia we g...
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- Reactivity of NO is due to:
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- The catalyst used in the preparation of red from yellow P is :
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- Elements of group 15 showing allotropic forms are:
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- Nitrolim, a nitrgenous fertilizer is:
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- Smelling salt is:
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- PCl5 exists but NCl3 does not because:
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- Calcium superphosphate is:
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- The prinicipal constituent of superphosphate of lime is
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- The vapour density of NH4Cl is almost half the expected value because ...
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- Ammonium and phosphate resemble each other in:
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- Labourer.s working with phosphorus suffer from a diseses in which bone...
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- The largest bond angle is in:
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- Which one is most important in fertilizer production?
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- A glass tube containing molten antimony breaks upon solidification of ...
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- Nitrogenformsoxides.
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- In the manufacture of safety matched, we use:
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- Nitrous oxide may easily be distinguished from nitric oxide by:
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