315185
The oxidation state of tungsten in is \(\mathrm{\mathrm{Na}_{2} \mathrm{~W}_{4} \mathrm{O}_{13} \cdot 10 \mathrm{H}_{2} \mathrm{O}}\) is
1 +7
2 +6
3 +4
4 +4.5
Explanation:
Conceptual Questions
CHXI08:REDOX REACTIONS
315186
Oxidation number of ' \(\mathrm{N}\) ' in \(\mathrm{N}_{3} \mathrm{H}\) (hydrazoic acid) is
1 \(-\dfrac{1}{3}\)
2 +3
3 0
4 -3
Explanation:
\(\mathrm{N}_{3} \mathrm{H}\) (hydrozoic acid) Let the oxidation state of \(\mathrm{N}\) be \(\mathrm{x}\). \[\begin{array}{l} + 3({\rm{x}}) + 1 = 0\\ 3{\rm{x}} + 1 = 0\;\\ \Rightarrow \;{\rm{x}} = - \frac{1}{3} \end{array}\]
CHXI08:REDOX REACTIONS
315187
In \({\text{TeO}}_{{\text{3(aq) }}}^{{\text{2 - }}} \to {\text{TeO}}_{{\text{4(aq)}}}^{{\text{2 - }}}\), the oxidation number of Te changes by ____ unit(s).
1 1
2 2
3 3
4 4
Explanation:
The oxidation number of Te increases from +4 to +6 . Hence, oxidation number of Te changes by 2 units.
CHXI08:REDOX REACTIONS
315188
In acidic medium, \(\mathrm{H}_{2} \mathrm{O}_{2}\) changes \(\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}\) to \(\mathrm{CrO}_{5}\) which has two \((-\mathrm{O}-\mathrm{O}-\) ) bonds.Oxidation state of Cr in \(\mathrm{CrO}_{5}\) is
1 +5
2 +3
3 +6
4 \( - 10\)
Explanation:
\(\mathrm{CrO}_{5}\) has butterfly shape with two peroxy linkages.
315185
The oxidation state of tungsten in is \(\mathrm{\mathrm{Na}_{2} \mathrm{~W}_{4} \mathrm{O}_{13} \cdot 10 \mathrm{H}_{2} \mathrm{O}}\) is
1 +7
2 +6
3 +4
4 +4.5
Explanation:
Conceptual Questions
CHXI08:REDOX REACTIONS
315186
Oxidation number of ' \(\mathrm{N}\) ' in \(\mathrm{N}_{3} \mathrm{H}\) (hydrazoic acid) is
1 \(-\dfrac{1}{3}\)
2 +3
3 0
4 -3
Explanation:
\(\mathrm{N}_{3} \mathrm{H}\) (hydrozoic acid) Let the oxidation state of \(\mathrm{N}\) be \(\mathrm{x}\). \[\begin{array}{l} + 3({\rm{x}}) + 1 = 0\\ 3{\rm{x}} + 1 = 0\;\\ \Rightarrow \;{\rm{x}} = - \frac{1}{3} \end{array}\]
CHXI08:REDOX REACTIONS
315187
In \({\text{TeO}}_{{\text{3(aq) }}}^{{\text{2 - }}} \to {\text{TeO}}_{{\text{4(aq)}}}^{{\text{2 - }}}\), the oxidation number of Te changes by ____ unit(s).
1 1
2 2
3 3
4 4
Explanation:
The oxidation number of Te increases from +4 to +6 . Hence, oxidation number of Te changes by 2 units.
CHXI08:REDOX REACTIONS
315188
In acidic medium, \(\mathrm{H}_{2} \mathrm{O}_{2}\) changes \(\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}\) to \(\mathrm{CrO}_{5}\) which has two \((-\mathrm{O}-\mathrm{O}-\) ) bonds.Oxidation state of Cr in \(\mathrm{CrO}_{5}\) is
1 +5
2 +3
3 +6
4 \( - 10\)
Explanation:
\(\mathrm{CrO}_{5}\) has butterfly shape with two peroxy linkages.
315185
The oxidation state of tungsten in is \(\mathrm{\mathrm{Na}_{2} \mathrm{~W}_{4} \mathrm{O}_{13} \cdot 10 \mathrm{H}_{2} \mathrm{O}}\) is
1 +7
2 +6
3 +4
4 +4.5
Explanation:
Conceptual Questions
CHXI08:REDOX REACTIONS
315186
Oxidation number of ' \(\mathrm{N}\) ' in \(\mathrm{N}_{3} \mathrm{H}\) (hydrazoic acid) is
1 \(-\dfrac{1}{3}\)
2 +3
3 0
4 -3
Explanation:
\(\mathrm{N}_{3} \mathrm{H}\) (hydrozoic acid) Let the oxidation state of \(\mathrm{N}\) be \(\mathrm{x}\). \[\begin{array}{l} + 3({\rm{x}}) + 1 = 0\\ 3{\rm{x}} + 1 = 0\;\\ \Rightarrow \;{\rm{x}} = - \frac{1}{3} \end{array}\]
CHXI08:REDOX REACTIONS
315187
In \({\text{TeO}}_{{\text{3(aq) }}}^{{\text{2 - }}} \to {\text{TeO}}_{{\text{4(aq)}}}^{{\text{2 - }}}\), the oxidation number of Te changes by ____ unit(s).
1 1
2 2
3 3
4 4
Explanation:
The oxidation number of Te increases from +4 to +6 . Hence, oxidation number of Te changes by 2 units.
CHXI08:REDOX REACTIONS
315188
In acidic medium, \(\mathrm{H}_{2} \mathrm{O}_{2}\) changes \(\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}\) to \(\mathrm{CrO}_{5}\) which has two \((-\mathrm{O}-\mathrm{O}-\) ) bonds.Oxidation state of Cr in \(\mathrm{CrO}_{5}\) is
1 +5
2 +3
3 +6
4 \( - 10\)
Explanation:
\(\mathrm{CrO}_{5}\) has butterfly shape with two peroxy linkages.
315185
The oxidation state of tungsten in is \(\mathrm{\mathrm{Na}_{2} \mathrm{~W}_{4} \mathrm{O}_{13} \cdot 10 \mathrm{H}_{2} \mathrm{O}}\) is
1 +7
2 +6
3 +4
4 +4.5
Explanation:
Conceptual Questions
CHXI08:REDOX REACTIONS
315186
Oxidation number of ' \(\mathrm{N}\) ' in \(\mathrm{N}_{3} \mathrm{H}\) (hydrazoic acid) is
1 \(-\dfrac{1}{3}\)
2 +3
3 0
4 -3
Explanation:
\(\mathrm{N}_{3} \mathrm{H}\) (hydrozoic acid) Let the oxidation state of \(\mathrm{N}\) be \(\mathrm{x}\). \[\begin{array}{l} + 3({\rm{x}}) + 1 = 0\\ 3{\rm{x}} + 1 = 0\;\\ \Rightarrow \;{\rm{x}} = - \frac{1}{3} \end{array}\]
CHXI08:REDOX REACTIONS
315187
In \({\text{TeO}}_{{\text{3(aq) }}}^{{\text{2 - }}} \to {\text{TeO}}_{{\text{4(aq)}}}^{{\text{2 - }}}\), the oxidation number of Te changes by ____ unit(s).
1 1
2 2
3 3
4 4
Explanation:
The oxidation number of Te increases from +4 to +6 . Hence, oxidation number of Te changes by 2 units.
CHXI08:REDOX REACTIONS
315188
In acidic medium, \(\mathrm{H}_{2} \mathrm{O}_{2}\) changes \(\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}\) to \(\mathrm{CrO}_{5}\) which has two \((-\mathrm{O}-\mathrm{O}-\) ) bonds.Oxidation state of Cr in \(\mathrm{CrO}_{5}\) is
1 +5
2 +3
3 +6
4 \( - 10\)
Explanation:
\(\mathrm{CrO}_{5}\) has butterfly shape with two peroxy linkages.
