321245 Which of the following oxides are acidic in nature?

321246 When \({\mathrm{\mathrm{MnO}_{2}}}\) and \({\mathrm{\mathrm{H}_{2} \mathrm{SO}_{4}}}\) is added to a salt (A), the greenish yellow gas liberated as salt (A) is

321247 The oxoanion which contains all equivalent \(\mathrm{M-}\) \(\mathrm{\mathrm{O}}\) bond is
(I) \(\mathrm{\mathrm{CrO}_{4}^{-2}}\)
(II) \(\mathrm{\mathrm{MnO}_{4}^{-}}\)
(III) \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}}\)

321248 I.
As the oxidation number of a metal increases, ionic character decreases.
II. In case of \(\mathrm{\mathrm{Mn}, \mathrm{Mn}_{2} \mathrm{O}_{7}}\) is a covalent green oil which possess predominantly acidic character and it gives \(\mathrm{\mathrm{HMnO}_{4}}\).
III. \(\mathrm{\mathrm{V}_{2} \mathrm{O}_{5}}\) is amphoteric, it gives \(\mathrm{\mathrm{VO}_{4}^{3-}}\) as well as \(\mathrm{\mathrm{VO}_{2}^{+}}\)salts.
IV. \(\mathrm{\mathrm{CrO}}\) is basic while \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{3}}\) is amphoteric.
The correct set of statements is (choose the appropriate option)

321245 Which of the following oxides are acidic in nature?

321246 When \({\mathrm{\mathrm{MnO}_{2}}}\) and \({\mathrm{\mathrm{H}_{2} \mathrm{SO}_{4}}}\) is added to a salt (A), the greenish yellow gas liberated as salt (A) is

321247 The oxoanion which contains all equivalent \(\mathrm{M-}\) \(\mathrm{\mathrm{O}}\) bond is
(I) \(\mathrm{\mathrm{CrO}_{4}^{-2}}\)
(II) \(\mathrm{\mathrm{MnO}_{4}^{-}}\)
(III) \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}}\)

321248 I.
As the oxidation number of a metal increases, ionic character decreases.
II. In case of \(\mathrm{\mathrm{Mn}, \mathrm{Mn}_{2} \mathrm{O}_{7}}\) is a covalent green oil which possess predominantly acidic character and it gives \(\mathrm{\mathrm{HMnO}_{4}}\).
III. \(\mathrm{\mathrm{V}_{2} \mathrm{O}_{5}}\) is amphoteric, it gives \(\mathrm{\mathrm{VO}_{4}^{3-}}\) as well as \(\mathrm{\mathrm{VO}_{2}^{+}}\)salts.
IV. \(\mathrm{\mathrm{CrO}}\) is basic while \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{3}}\) is amphoteric.
The correct set of statements is (choose the appropriate option)

321245 Which of the following oxides are acidic in nature?

321246 When \({\mathrm{\mathrm{MnO}_{2}}}\) and \({\mathrm{\mathrm{H}_{2} \mathrm{SO}_{4}}}\) is added to a salt (A), the greenish yellow gas liberated as salt (A) is

321247 The oxoanion which contains all equivalent \(\mathrm{M-}\) \(\mathrm{\mathrm{O}}\) bond is
(I) \(\mathrm{\mathrm{CrO}_{4}^{-2}}\)
(II) \(\mathrm{\mathrm{MnO}_{4}^{-}}\)
(III) \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}}\)

321248 I.
As the oxidation number of a metal increases, ionic character decreases.
II. In case of \(\mathrm{\mathrm{Mn}, \mathrm{Mn}_{2} \mathrm{O}_{7}}\) is a covalent green oil which possess predominantly acidic character and it gives \(\mathrm{\mathrm{HMnO}_{4}}\).
III. \(\mathrm{\mathrm{V}_{2} \mathrm{O}_{5}}\) is amphoteric, it gives \(\mathrm{\mathrm{VO}_{4}^{3-}}\) as well as \(\mathrm{\mathrm{VO}_{2}^{+}}\)salts.
IV. \(\mathrm{\mathrm{CrO}}\) is basic while \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{3}}\) is amphoteric.
The correct set of statements is (choose the appropriate option)

321245 Which of the following oxides are acidic in nature?

321246 When \({\mathrm{\mathrm{MnO}_{2}}}\) and \({\mathrm{\mathrm{H}_{2} \mathrm{SO}_{4}}}\) is added to a salt (A), the greenish yellow gas liberated as salt (A) is

321247 The oxoanion which contains all equivalent \(\mathrm{M-}\) \(\mathrm{\mathrm{O}}\) bond is
(I) \(\mathrm{\mathrm{CrO}_{4}^{-2}}\)
(II) \(\mathrm{\mathrm{MnO}_{4}^{-}}\)
(III) \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}}\)

321248 I.
As the oxidation number of a metal increases, ionic character decreases.
II. In case of \(\mathrm{\mathrm{Mn}, \mathrm{Mn}_{2} \mathrm{O}_{7}}\) is a covalent green oil which possess predominantly acidic character and it gives \(\mathrm{\mathrm{HMnO}_{4}}\).
III. \(\mathrm{\mathrm{V}_{2} \mathrm{O}_{5}}\) is amphoteric, it gives \(\mathrm{\mathrm{VO}_{4}^{3-}}\) as well as \(\mathrm{\mathrm{VO}_{2}^{+}}\)salts.
IV. \(\mathrm{\mathrm{CrO}}\) is basic while \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{3}}\) is amphoteric.
The correct set of statements is (choose the appropriate option)