1. Tardigrade
  2. Question
  3. Chemistry
  4. Statement 1: CrO3 is an acid anhydride Statement 2: CrO3 is obtained as bright orange crystals by the reaction of K2Cr2O7 with cold concentrated H2SO4

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Q. Statement 1: $CrO_3$ is an acid anhydride
Statement 2: $CrO_3$ is obtained as bright orange crystals by the reaction of $K_2Cr_2O_7$ with cold concentrated $H_2SO_4$

The d-and f-Block Elements

Solution:

Statement 1: Correct statement as it gives oxy acid $H_2Cr_2O_7; 2CrO_3 + H_2O \to H_2Cr_2O_7.$
Statement 2: Correct statement: $K_2Cr_2O_7 + 2H_2SO_4$ (concentrated and cold)$\to CrO_3^{-}$ (bright orange) $+ 2KHSO_4 + H_2O$