-. Which of the following does not give oxygen on heating? (a) K Cr2O7 (b) (NHL.) Cro (c) KCIO, (d) Zn(CIO) (NEET 2013)

Which of the following does not gives oxygen on heating

Which of the following does not give oxygen gas on heating? (A) \(KMnO_{4}\) (B) \(KClO_{3}\) (c) \(Ag_{2}O\) (D) \(Al_{2}O_{3}\)

Which of the following is amphoteric oxide? Mn_2O_7 , CrO_2 , Cr_2O_3, CrO , V_2O_5, V_2O_4

Which of the following is tetrahedral and paramagnetic ? MnO_(4)^(-), CrO_(4)^(--), Cr_(2)O_(7)^(2-), MnO_(4)^(--), CIO_(4)^(-), CIO_(3)^(-), NO_(2), N_(2)O_(4) [If your answer is 5 so write 0005.]

In which of the following there is a change in oxidation number ? (a) An aqueous solution of CrO_(4)^(2-) is acidified. (b) SO_(2) gas is passed through acidified Cr_(2)O_(7)^(2-) solution. (c) Cr_(2)O_(7)^(2-) solution is made alkaline. (d) CrO_(2)Cl_(2) is dissolved in NaOH.

Which of the following statements is/are true A) Na_(2) r_(2), O_(7) is more soluble in water than K_(2)CR_(2)O_(7) B) K_(2)Cr_(2)O_(7) is used as a primary standard in volumetric analysis C) Both Na_(2)Cr_(2)O_(7) and K_(2) Cr_(2)O_(7) are strong oxidizing agents D) The chromates and dichromates are interconvertible in aqueous solutions