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  1. Oxidation numbers of carbon in CH₂Cl₂,CO₂ and CO₃²⁻ are respectively
  2. H₂S is not a
  3. A bromoalkane contains 35% carbon and 6.57% hydrogen by mass. Calculate the empirical
  4. Solubility of MX₂ – type electrolytes is 0.5 ˣ 10⁻⁴ mol/L.,
  5. Which of the following is paramagnetic