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Oxidation number of chromium in Na₂Cr₂O₇ is
Options
(a) 2
(b) 4
(c) 3
(d) 6
Correct Answer:
6
Explanation:
Oxidation number of chromium in Na₂Cr₂O₇ is +6. Oxidation number of Na = +1. Oxidation number of O = -2. Therefore 2 + 2x -2 * 7 = 0.⇒ 2x – 12 = 0 , ⇒ x = +6.
Related Questions: - The element that does not show catenation among the following p-block elements is
- Oxidation number of iron in [Fe(CN)₆]⁴⁻ is
- Equal volumes of 0.1 M AgNO₃ and 0.2 M NaCl are mixed
- The molecular of CO₂ has angle 180°.It can be explained on the basis of
- The wavelength of the radiation emitted when an electron drops from 3rd orbit
Topics: D and F Block Elements
(91)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The element that does not show catenation among the following p-block elements is
- Oxidation number of iron in [Fe(CN)₆]⁴⁻ is
- Equal volumes of 0.1 M AgNO₃ and 0.2 M NaCl are mixed
- The molecular of CO₂ has angle 180°.It can be explained on the basis of
- The wavelength of the radiation emitted when an electron drops from 3rd orbit
Topics: D and F Block Elements (91)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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