Recent questions in Oxidation & Reduction

In which of the following acid, which acid has oxidation reduction and complex formation properties

asked Oct 4, 2018 by meena.p

1 answer

When P reacts with caustic soda, the products are $PH_3$ and $NaH_2PO_2$. This reaction is an example of

asked Oct 4, 2018 by meena.p

1 answer

Excess of KI reacts with $CuSo_4$ solution and then $Na_2S_2O_3$ solution is added to it. Which of the statements is incorrect for this reaction ?

asked Oct 4, 2018 by meena.p

1 answer

When $Cl_2$ gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes from

asked Oct 4, 2018 by meena.p

1 answer

Calculate the volume of $0.01\;M\;KMnO_4$ solution required in acidic medium for complete oxidation of 100 ml of ferrous Solution whose strength is $3.6\;gL^{-1}$

asked Oct 4, 2018 by meena.p

1 answer

Excess of KI reacts with $CuSo_4$ solution and then $Na_2S_2O_3$ solution is added to it. Which of the statements is incorrect for this reaction ?

asked Oct 4, 2018 by meena.p

1 answer

The conversion of $PbO_2$ to $Pb(NO_3)_2$ is

asked Oct 4, 2018 by meena.p

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Burning of lime to give calcium oxide and carbon dioxide is

asked Oct 3, 2018 by meena.p

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In the decomposition reaction of a hydrogen peroxide solution : $2H_2O_2 (aq) \to 2H_2O(l) +O_2(g)$

asked Oct 3, 2018 by meena.p

1 answer

In the combustion reaction between butane $(C_4H_{10})$ and oxygen , the oxidation state of carbon goes from

asked Oct 3, 2018 by meena.p

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Which of the following statement is NOT true ?

asked Oct 3, 2018 by meena.p

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of the following , the element that does NOT react with hydrochloric acid to produce hydrogen gas is

asked Oct 3, 2018 by meena.p

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When elemental bromine $(Br_2)$ reacts with a solution of sodium iodide (Nal)

asked Oct 3, 2018 by meena.p

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Reduction agents are substances that

asked Oct 3, 2018 by meena.p

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Which of the following is true ?

asked Oct 3, 2018 by meena.p

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The reaction type that could possibily be viewed as a redox reaction in which only one substance is present in the reactants.

asked Oct 3, 2018 by meena.p

1 answer

The reaction type that does not generally involved the transfer of electrons and is not viewed as a redox reaction .

asked Sep 27, 2018 by meena.p

1 answer

The reaction type that can be viewed as redox often involving hydrocarbon fules and oxygen releasing heat and light .

asked Sep 27, 2018 by meena.p

1 answer

The reaction type that can be viewed as redox often involving hydrocarbon fueld and oxygen releasing heat and light

asked Sep 27, 2018 by meena.p

1 answer

The conversion of $PbO_2$ to $Pb(NO_3)_2$ is

asked Jun 29, 2018 by meena.p

1 answer

How many electrons are involved in oxidation by $KMnO_4$ in basic medium

asked Jun 29, 2018 by meena.p

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For $H_3PO_3$ and $H_3PO_4$ the correct choice is

asked Jun 29, 2018 by meena.p

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$H_2S$ acts only as a reducing agent while $SO_2$ can act both as a reducing and oxidizing agent because

asked Jun 29, 2018 by meena.p

1 answer

In a aqueous solution , hydrogen will not reduce

asked Jun 29, 2018 by meena.p

1 answer

When $Cl_2$ gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes from

asked Jun 29, 2018 by meena.p

1 answer

In which of the following compounds, nitrogen exhibits highest oxidation state ?

asked Jun 29, 2018 by meena.p

1 answer

In which of the following acid, which acid has oxidation reduction and complex formation properties

asked Jun 29, 2018 by meena.p

1 answer

Oxidizing agents

asked Jun 28, 2018 by meena.p

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Old paintings can be restored through an oxidizing agent

asked Jun 28, 2018 by meena.p

1 answer

Excess of KI reacts with $CuSo_4$ solution and then $Na_2S_2O_3$ solution is added to it. Which of the statements is incorrect for this reaction ?

asked Jun 28, 2018 by meena.p

1 answer

The conversion of $PbO_2$ to $Pb(NO_3)_2$ is

asked Jun 28, 2018 by meena.p

1 answer

In the reaction $H_2S+NO_2 \to H_2O+NO+S.H_2S$ is

asked Jun 28, 2018 by meena.p

1 answer

When P reacts with caustic soda, the products are $PH_3$ and $NaH_2PO_2$. This reaction is an example of

asked Jun 28, 2018 by meena.p

1 answer

One mole of $N_2H_4$ loses 10 mole electrons to form a new compound Y. Assuming that all the $N_2$ appears in new compound, what is the oxidation state of Nitrogen in Y? (There is no change in the oxidation state of H)

asked Jun 28, 2018 by meena.p

1 answer

Consider: $CH_{4(g)} + 2O_{2 (g)} \to CO_{2 (g)} + 2H_2O_{ (g)}$ Determine what was oxidized and what was reduced.

asked Jun 28, 2018 by meena.p

1 answer

The process in which oxidation number increases is known as

asked Jun 28, 2018 by meena.p

1 answer

The most active nonmetallic element is

asked Jun 28, 2018 by meena.p

1 answer

In the reaction between ozone and hydrogen peroxide, $H_2O_2$ acts as

asked Jun 28, 2018 by meena.p

1 answer

A metal ion $M^{3+}$ after loss of three electrons in a reaction will have an oxidation number equal to

asked Jun 28, 2018 by meena.p

1 answer

$C_2H_6(g)+nO_2 \to CO_2(g)+H_2O(l)$ In this equation, the ratio of the coefficients of $CO_2$ and $H_2O$ is

asked Jun 28, 2018 by meena.p

1 answer

The value of x in the partial redox equation $MnO^{−4}+8H^{+} + xe ⇌ Mn^{2+}+4H2O$ is

asked Jun 28, 2018 by meena.p

1 answer

The oxidation state of chromium in the final product formed by the reaction between KI and acidified potassium dichromate solution is

asked Jun 27, 2018 by meena.p

1 answer

Excess of KI reacts with $CuSo_4$ solution and then $Na_2S_2O_3$ solution is added to it. Which of the statements is incorrect for this reaction ?

asked Jun 27, 2018 by meena.p

1 answer

One mole of $N_2H_4$ loses 10 mole electrons to form a new compound Y. Assuming that all the N2 appears in new compound, what is the oxidation state of Nitrogen in Y? (There is no change in the oxidation state of H)

asked Jun 27, 2018 by meena.p

1 answer

Find the oxidation number of $S$ in $HSO^{3-}$ ion

asked Jun 27, 2018 by meena.p

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