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MBD PUBLICATION-p-BLOCK ELEMENTS-QUESTION BANK
- The weakest acid is:
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- The compound of sulphur that can be used as refrigerant is:
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- 98% H2SO4 is:
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- Bond angle is minimum for
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- In which reaction there is no change in valency and the oxidation stat...
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- Hypo is used in photography to:
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- Strongest reducing agent is:
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- Which hydride is most acidic ?
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- Formula of rhombic sulphur is
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- It is possible to obtain oxygen from air by fractional distillation be...
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- The elemnets S, Se, Te can have two positive oxidation states ? Which ...
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- On exposure to light electrical conductivity of selenium
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- Hydrogen sulphide reacts with lead acetate forming a black compound wh...
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- H2S cannot be dried by passing over conc. H2SO4 because:
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- H2SO4 has very corrosive action on skin because:
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- Different allotropic forms of sulphur differ in:
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- Oxide of a non-metal possesses the following characteristics: It is ...
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- Oxalic acid when heated with conc.H2SO4 gives:
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- Which of the following isotopes is present in largest amount :
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- Ozone turns tetramethyl base paper:
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