O.N. of \(\mathrm{\mathrm{N}}\) in \(\mathrm{\mathrm{NO}_{2}}\) and \(\mathrm{\mathrm{N}_{2} \mathrm{O}_{4}}\) is +4 \(\mathrm{\therefore}\) difference is zero O.N. of \(\mathrm{\mathrm{P}}\) in \(\mathrm{\mathrm{P}_{2} \mathrm{O}_{5}}\) and \(\mathrm{\mathrm{P}_{4} \mathrm{O}_{10}}\) is +5 \(\mathrm{\therefore}\) difference is zero O.N. of \(\mathrm{\mathrm{N}}\) in \(\mathrm{\mathrm{N}_{2} \mathrm{O}}\) is +1 and in \(\mathrm{\mathrm{NO}}\) is +2 . The difference is 1 O.N. of \(\mathrm{\mathrm{S}}\) in \(\mathrm{\mathrm{SO}_{2}}\) is +4 and in \(\mathrm{\mathrm{SO}_{3}}\) is +6 . The difference is +2 .
CHXI08:REDOX REACTIONS
315218
The oxidation state of chromium in \(\mathrm{\mathrm{Cr}(\mathrm{CO})_{6}}\) is
1 0
2 +3
3 +6
4 +4
Explanation:
Oxidation state of the metal in chromium hexacarbonyl is zero.
CHXI08:REDOX REACTIONS
315219
Which one of the following statements is not correct?
1 Oxidation number of S in \(\left(\mathrm{NH}_{4}\right)_{2} \mathrm{~S}_{2} \mathrm{O}_{8}\) is +6 .
2 Oxidation number of Os in \(\mathrm{OsO}_{4}\) is +8 .
3 Oxidation number of S in \(\mathrm{H}_{2} \mathrm{SO}_{5}\) is +8 .
4 Oxidation number of O in \(\mathrm{KO}_{2}\) is \(-\dfrac{1}{2}\).
Explanation:
\(\mathrm{H}_{2} \mathrm{SO}_{5}:+2+\mathrm{x}+3(-2)+2(-1)=0\) \(\mathrm{x}=+6\) So, oxidation no. of S is +6 in \(\mathrm{H}_{2} \mathrm{SO}_{5}\).
CHXI08:REDOX REACTIONS
315220
In Wustite \(\mathrm{\mathrm{Fe}_{0.93} \mathrm{O}}\), the oxidation number of iron is
O.N. of \(\mathrm{\mathrm{N}}\) in \(\mathrm{\mathrm{NO}_{2}}\) and \(\mathrm{\mathrm{N}_{2} \mathrm{O}_{4}}\) is +4 \(\mathrm{\therefore}\) difference is zero O.N. of \(\mathrm{\mathrm{P}}\) in \(\mathrm{\mathrm{P}_{2} \mathrm{O}_{5}}\) and \(\mathrm{\mathrm{P}_{4} \mathrm{O}_{10}}\) is +5 \(\mathrm{\therefore}\) difference is zero O.N. of \(\mathrm{\mathrm{N}}\) in \(\mathrm{\mathrm{N}_{2} \mathrm{O}}\) is +1 and in \(\mathrm{\mathrm{NO}}\) is +2 . The difference is 1 O.N. of \(\mathrm{\mathrm{S}}\) in \(\mathrm{\mathrm{SO}_{2}}\) is +4 and in \(\mathrm{\mathrm{SO}_{3}}\) is +6 . The difference is +2 .
CHXI08:REDOX REACTIONS
315218
The oxidation state of chromium in \(\mathrm{\mathrm{Cr}(\mathrm{CO})_{6}}\) is
1 0
2 +3
3 +6
4 +4
Explanation:
Oxidation state of the metal in chromium hexacarbonyl is zero.
CHXI08:REDOX REACTIONS
315219
Which one of the following statements is not correct?
1 Oxidation number of S in \(\left(\mathrm{NH}_{4}\right)_{2} \mathrm{~S}_{2} \mathrm{O}_{8}\) is +6 .
2 Oxidation number of Os in \(\mathrm{OsO}_{4}\) is +8 .
3 Oxidation number of S in \(\mathrm{H}_{2} \mathrm{SO}_{5}\) is +8 .
4 Oxidation number of O in \(\mathrm{KO}_{2}\) is \(-\dfrac{1}{2}\).
Explanation:
\(\mathrm{H}_{2} \mathrm{SO}_{5}:+2+\mathrm{x}+3(-2)+2(-1)=0\) \(\mathrm{x}=+6\) So, oxidation no. of S is +6 in \(\mathrm{H}_{2} \mathrm{SO}_{5}\).
CHXI08:REDOX REACTIONS
315220
In Wustite \(\mathrm{\mathrm{Fe}_{0.93} \mathrm{O}}\), the oxidation number of iron is
O.N. of \(\mathrm{\mathrm{N}}\) in \(\mathrm{\mathrm{NO}_{2}}\) and \(\mathrm{\mathrm{N}_{2} \mathrm{O}_{4}}\) is +4 \(\mathrm{\therefore}\) difference is zero O.N. of \(\mathrm{\mathrm{P}}\) in \(\mathrm{\mathrm{P}_{2} \mathrm{O}_{5}}\) and \(\mathrm{\mathrm{P}_{4} \mathrm{O}_{10}}\) is +5 \(\mathrm{\therefore}\) difference is zero O.N. of \(\mathrm{\mathrm{N}}\) in \(\mathrm{\mathrm{N}_{2} \mathrm{O}}\) is +1 and in \(\mathrm{\mathrm{NO}}\) is +2 . The difference is 1 O.N. of \(\mathrm{\mathrm{S}}\) in \(\mathrm{\mathrm{SO}_{2}}\) is +4 and in \(\mathrm{\mathrm{SO}_{3}}\) is +6 . The difference is +2 .
CHXI08:REDOX REACTIONS
315218
The oxidation state of chromium in \(\mathrm{\mathrm{Cr}(\mathrm{CO})_{6}}\) is
1 0
2 +3
3 +6
4 +4
Explanation:
Oxidation state of the metal in chromium hexacarbonyl is zero.
CHXI08:REDOX REACTIONS
315219
Which one of the following statements is not correct?
1 Oxidation number of S in \(\left(\mathrm{NH}_{4}\right)_{2} \mathrm{~S}_{2} \mathrm{O}_{8}\) is +6 .
2 Oxidation number of Os in \(\mathrm{OsO}_{4}\) is +8 .
3 Oxidation number of S in \(\mathrm{H}_{2} \mathrm{SO}_{5}\) is +8 .
4 Oxidation number of O in \(\mathrm{KO}_{2}\) is \(-\dfrac{1}{2}\).
Explanation:
\(\mathrm{H}_{2} \mathrm{SO}_{5}:+2+\mathrm{x}+3(-2)+2(-1)=0\) \(\mathrm{x}=+6\) So, oxidation no. of S is +6 in \(\mathrm{H}_{2} \mathrm{SO}_{5}\).
CHXI08:REDOX REACTIONS
315220
In Wustite \(\mathrm{\mathrm{Fe}_{0.93} \mathrm{O}}\), the oxidation number of iron is
O.N. of \(\mathrm{\mathrm{N}}\) in \(\mathrm{\mathrm{NO}_{2}}\) and \(\mathrm{\mathrm{N}_{2} \mathrm{O}_{4}}\) is +4 \(\mathrm{\therefore}\) difference is zero O.N. of \(\mathrm{\mathrm{P}}\) in \(\mathrm{\mathrm{P}_{2} \mathrm{O}_{5}}\) and \(\mathrm{\mathrm{P}_{4} \mathrm{O}_{10}}\) is +5 \(\mathrm{\therefore}\) difference is zero O.N. of \(\mathrm{\mathrm{N}}\) in \(\mathrm{\mathrm{N}_{2} \mathrm{O}}\) is +1 and in \(\mathrm{\mathrm{NO}}\) is +2 . The difference is 1 O.N. of \(\mathrm{\mathrm{S}}\) in \(\mathrm{\mathrm{SO}_{2}}\) is +4 and in \(\mathrm{\mathrm{SO}_{3}}\) is +6 . The difference is +2 .
CHXI08:REDOX REACTIONS
315218
The oxidation state of chromium in \(\mathrm{\mathrm{Cr}(\mathrm{CO})_{6}}\) is
1 0
2 +3
3 +6
4 +4
Explanation:
Oxidation state of the metal in chromium hexacarbonyl is zero.
CHXI08:REDOX REACTIONS
315219
Which one of the following statements is not correct?
1 Oxidation number of S in \(\left(\mathrm{NH}_{4}\right)_{2} \mathrm{~S}_{2} \mathrm{O}_{8}\) is +6 .
2 Oxidation number of Os in \(\mathrm{OsO}_{4}\) is +8 .
3 Oxidation number of S in \(\mathrm{H}_{2} \mathrm{SO}_{5}\) is +8 .
4 Oxidation number of O in \(\mathrm{KO}_{2}\) is \(-\dfrac{1}{2}\).
Explanation:
\(\mathrm{H}_{2} \mathrm{SO}_{5}:+2+\mathrm{x}+3(-2)+2(-1)=0\) \(\mathrm{x}=+6\) So, oxidation no. of S is +6 in \(\mathrm{H}_{2} \mathrm{SO}_{5}\).
CHXI08:REDOX REACTIONS
315220
In Wustite \(\mathrm{\mathrm{Fe}_{0.93} \mathrm{O}}\), the oxidation number of iron is
