An element \( A \) in a compound \( A B D \) has oxidation number \( \mathrm{A}^{n-} \). It is o...
Channel:
Subscribers:
458,000
Published on ● Video Link: https://www.youtube.com/watch?v=WD2-Gg8TvN4
1An element \( A \) in a compound \( A B D \) has oxidation number \( \mathrm{A}^{n-} \). It is oxidised by \( \mathrm{Cr}_{2} \mathrm{O}_{7}^{2-} \) in acidic medium. In the experiment \( 1.68 \times 10^{-3} \) mole of \( \mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7} \) were used for \( 3.26 \times 10^{-3} \) mole of \( A B D \). The new oxidation number of A atter oxidation is:
(A) 3
(B) \( n-3 \)
(C) \( 3-n \)
(D) \( +n \)
ЁЯУ▓ PW App Link - https://bit.ly/YTAI_PWAP
ЁЯМР PW Website - https://www.pw.live/