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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता ११ वी

Choose the correct option. Which of the following halogens does always show oxidation state -1?

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प्रश्न

Choose the correct option.

Which of the following halogens does always show oxidation state -1?

पर्याय

  • F

  • Cl

  • Br

  • I

MCQ
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उत्तर

F

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पाठ 6: Redox Reactions - Exercises [पृष्ठ ९१]

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बालभारती Chemistry [English] Standard 11 Maharashtra State Board
पाठ 6 Redox Reactions
Exercises | Q 1. (I) | पृष्ठ ९१

संबंधित प्रश्‍न

Choose the correct option.

Oxidation numbers of Cl atoms marked as Cla and Clb in CaOCl2 (bleaching powder) are

\[\begin{array}{cc} \ce{Cl^{{a}}}\phantom{.} \\/\phantom{...} \\ \ce{Ca}\phantom{......} \\ \backslash\phantom{..} \\\phantom{........} \ce{O-Cl^{{b}}}\phantom{.} \end{array}\]


Choose the correct option.

A compound contains atoms of three elements A, B, and C. If the oxidation state of A is +2, B is +5 and that of C is -2, the compound is possibly represented by


Choose the correct option.

The coefficients p, q, r, s in the reaction \[\ce{{p}Cr2O7^{2Θ} + {q}Fe^{2⊕}->{r}Cr^{3⊕} + {s}Fe^{3⊕} + H2O}\] respectively are:


Choose the correct option.

Oxidation number of oxygen in superoxide is


In which reaction does nitrogen exhibit variation of oxidation state from –3 to +5?


Calculate the oxidation number of the underlined atom.

Cr2O72−


Justify that the following reaction is redox reaction; identify the species oxidized/reduced, which acts as an oxidant and which acts as a reductant.

\[\ce{I2_{(aq)} + 2S2O^{2-}_{3(aq)}->S4O^{2-}_{6(aq)} + 2I^-_{ (aq)}}\]


Identify the following pair of species is in its oxidized state?

Cu/Cu2+


Justify the following reaction as a redox reaction.

\[\ce{2Na_{(s)} + S_{(s)} -> Na2S_{(s)}}\]

Find out the oxidizing and reducing agents.


Provide the stock notation for the following compound:

HAuCl4


Provide the stock notation for the following compound:

Fe2O3


Assign oxidation number atom in the following species.

H3BO3


Which of the following redox couple is a stronger oxidizing agent?

Cl2 (E0 = 1.36 V) and Br2 (E0 = 1.09 V)


Oxidation state of Xe in XeOF4 is ____________.


In the following reaction, the oxidation number of Cr changes.

\[\ce{ClO^-_{( aq)} + Cr(OH)^-_{4(aq)} -> CrO^{2-}_{4(aq)} + Cl^-_{( aq)} (basic)}\]


Identify the strongest oxidising agent.

\[\ce{Na^+ + e^- -> Na}\]; E0 = −2.714 V

\[\ce{Pt^{2+} + 2e^- -> Pt}\]; E0 = +1.200 V

\[\ce{I2 + 2e^- -> 2I^-}\]; E0 = + 0.535 V

\[\ce{Co^{2+} + 2e^- -> Co}\]; 0 = −0.280 V


The oxidation number of sulphur in S8 molecule is ______.


Oxidation state of nitrogen in nitric oxide is ______.


When methane undergoes combustion in air, the oxidation number of C ____________.


The sum of oxidation number of all atoms in \[\ce{S2O^{2-}_3}\] ion is ______.


The oxidation state of phosphorous in Mg2P2O7 is ______.


Carbon is present in highest oxidation number in ______.


The oxidation number of phosphorous in Ba(H2PO2)2 is ______.


What is the oxidation state of chlorine atom in perchloric acid?


The oxidation number of oxygen in oxygen difluoride (OF2) and dioxygen difluoride (O2F2) respectively is ______.


What is the average oxidation number of sulphur in tetrathionate ion?


Which of the following statements are INCORRECT?

  1. All the transition metals except scandium form MO oxides which are ionic.
  2. The highest oxidation number corresponding to the group number in transition metals oxides is attained in Sc2B5 to Mn2B7.
  3. Basic character increases from V2B5 to V2B4 to V2B5.
  4. V2B4 dissolves in acids to give VO43– salts.
  5. CrO is basic but Cr2B5 is atmospheric.

Choose the correct answer from the options given below:


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