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← Bihar Board Class 12 PYQ

The p-Block Elements

Bihar Board Class 12 · Chemistry · 73 past questions

6 of 73 · show all

  1. Q51 2018
    The product obtained when silica reacts with hydrogen fluoride is-
  2. Q52 2018
    Mercuric chloride reacts with ammonia gas and forms white precipitate. The molecular formula of white…
  3. Q54 2018
    Most stable oxidation state of Bismuth is-
  4. Q56 2018
    Nitrogen forms only $NCl_3$ but phosphorous forms $PCl_3$ and $PCl_5$ both. Explain.
  5. Q59 2018
    Write the chemical reaction of $NH_3$ gas with aqueous $CuSO_4$ and $AgNO_3$ solutions respectively.
  6. Q60 2018
    HI is stronger acid than HF. Explain.