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MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

Which of the following is not a redox reaction? (a) CaCO CaO CO -> (b) O 2H 2H O -> (c) Na H O NaOH H -> (d) MnCl MnCl Cl -> REDOX REACTIONS Ans (a) Sol. a. Oxidation states of Ca and C are +2 and +4, respec…

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

Assertion: F2 undergoes disproportionation reaction. Reason: Fluorine shows both positive and negative oxidation states.

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

Match the reactions in column I with their respective characteristics given in column II Column – 1 Column – 2 Name and Reaction Characteristics a. P PH H PO -> p. Fractional oxidation number b. C O q. c. CH Cl r. Na…

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

In the equation NO H O NO 2H ne -> n stands for

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

In the ionic equation, BiO 6H xe Bi 3H O -> the value of x is

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

The ratio of stoichiometric coefficient of Fe2+ and MnO

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

What is the stoichiometric coefficient of Ca in the reaction? Ca Al Ca Al ->

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

Which of the following reaction is balanced? (a) AsO MnO AsO MnO 2H O -> (b) MnO C O Mn CO -> (c) 3 2 Cu 4HNO Cu(NO ) 2NO 2H O -> (d) H S HNO H O NO S -> Ans (c) Sol. In option (a), 2- - 3- AsO +MnO A…

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

For the redox reaction MnO4– + C2O42– + H+ ->Mn2+ + CO2 + H2O, The correct stoichiometric coefficients of MnO4– , C2O42– and H+ are respectively:

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

In the chemical reaction, K2Cr2O7 + XH2SO4 + YSO2 -> K2SO4 + Cr2(SO4)3 + ZH2O, X, Y and Z are

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

aK Cr O bKCl cH SO -> xCrO Cl yKHSO zH O The above equation balances when

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

In the balanced chemical reaction IO aI bH cH O dI -> a, b, c and d respectively, correspond to

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

In the following redox equation, 2+ 2- + 2+ 3+ 2 7 xUO +Cr O +yH aUO +zCr +bH O -> the value of coefficients x, y and z respectively, are

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

In the redox reaction, xKMnO NH yKNO MnO KOH H O -> x and y are

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

In the reaction, 2IO xSO 4H O 5SO 8H I -> The coefficient of SO2 in balanced equation is

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

In a balanced equation, H SO xHI H S yI zH O -> the value of x, y and z are

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

For the reaction: NH OCl N H Cl -> in basic medium, the coefficients of NH3,OCl and N2H4 for the balanced equation are respectively

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

In the reaction, ->Br2 + xBrO yCr zH O HCrO H , REDOX REACTIONS the coefficients x, y and z are

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

Balance the following equation and choose the correct value of sum of coefficients of the products: CS Cl CCl S Cl ->

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

When copper is treated with a certain concentration of nitric acid, nitric oxide and nitrogen dioxide are liberated in equal volumes according to the equation. o xC u yH NO Cu NO NO NO H O -> The coefficients …

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

I 2S O S O 2I -> In the above reaction: (CPMT 2009)

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

In which of the following compounds, nitrogen exhibits highest oxidation state? (AIPMT 2012)

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

In acidic medium, H2O2 changes Cr O to CrO5 which has two (–– O –– O –––) bonds. Oxidation state of Cr in CrO5 is (AIMPT 2014)

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

Which of the following reactions are disproportionation reactions? (i) 2Cu Cu Cu -> (ii) 3MnO 4H 2MnO MnO 2H O -> (iii) 2KMnO K MnO MnO O -> (iv) 2MnO 3Mn 2H O 5MnO 4H -> Select the correct option fr…

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric Analysis

In the neutral or faintly alkaline medium, KMnO4 oxidises iodide into iodate. The change in oxidation state of manganese in this reaction is from (NEET 2022)

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