Three different solutions of oxidising agents `KMnO_(4),K_(2)Cr_(2)O_(7) " and "I_(2)` is titrated separately with 0.158 gm of `Na_(2)S_(2)O_(3)`. If

Three different solutions of oxidising agents `KMnO_(4),K_(2)Cr_(2)O_(7) " and "I_(2)` is titrated separately with 0.158 gm of `Na_(2)S_(2)O_(3)`. If
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Three different solutions of oxidising agents `KMnO_(4),K_(2)Cr_(2)O_(7) " and "I_(2)` is ... D. all three oxidising agent can act as self indicator.
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If equal volumes of `0.1 M KMnO_(4)` and `0.1 M K_(2)Cr_(2)O_(7)` solutions are allowed to oxidise `Fe^(2+)` to `Fe^(3+)` in acidic medium, then `Fe^(

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25 mL of a solution of `Fe^(2+)` ions was titrated with a solution of the oxidizing agent `Cr_(2)O_(7)^(2-)` . 50 mL of 0.01 M `K_(2)Cr_(2)O_(7)` solu

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I. `H_(2)S` reduces acidified `KMnO_(4)` to `MnSO_(4)` II. `H_(2)S` reduces acidified `K_(2)Cr_(2)O_(7)` to red colour `Cr_(2)(SO_(4))_(3)` III. `H_(2

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One mole of acidified `K_(2)Cr_(2)O_(7)` on reaction with excess of KCl will liberate….., moles of `I_(2)`.

Description : One mole of acidified `K_(2)Cr_(2)O_(7)` on reaction with excess of KCl will liberate….., moles of `I_(2)`.

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In the test for iodine, `I_(2)` is treated with sodium thiosulphate `(Na_(2)S_(2)O_(3))` : `Na_(2)S_(2)O_(3)+I_(2) to NaI +..`

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`Na_(2)S_(2)O_(3)` is oxidised by `I_(2)` to

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A 100 mL sample of water was treated to convert any iron present to `Fe^(2+)`. Addition of 25 mL of 0.002 M `K_(2)Cr_(2)O_(7)` resulted in the reactio

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How many mL of 0.3M `K_(2)Cr_(2)O_(7)` (acidic) is required for complete oxidation of 5 mL of 0.2 M `SnC_(2)O_(4)` solution.

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To measure the quantity of `MnCl_(2)` dissolved in an queous solution, it was completely converted to `KMnO_(4)` using the reaction `MnCl_(2)+K_(2)S_(

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When `H_(2)O_(2)` is reacted with `K_(2)Cr_(2)O_(7)" in dilute "H_(2)SO_(4)` and then ether is added. The ether layer gets -colour

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Assertion :- In acidic medium, equivalent weight of `K_(2)Cr_(2)O_(7)` is equal to `294//6`. Reason :- In acidic medium, `Cr_(2)O_(7)^(-2)` is reduced

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The oxidation state of sulhur in `H_(2)SO_(5)` and chromium in `K_(2)Cr_(2)O_(7)` respectively is :-

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Which of the following is not formed when `H_(2)S` reacts acidic `K_(2)Cr_(2)O_(7)` solution ?

Description : Which of the following is not formed when `H_(2)S` reacts acidic `K_(2)Cr_(2)O_(7)` solution ?

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Which of the following is not formed when `H_(2)S` reacts acidic `K_(2)Cr_(2)O_(7)` solution ?

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In the titration of `K_(2)Cr_(2)O_(7)` and ferrous sulphate, following data is obtained: `V_(1)` mL of `K_(2)Cr_(2)O_(7)` solution of molarity `M_(1)`

Description : In the titration of `K_(2)Cr_(2)O_(7)` and ferrous sulphate, following data is obtained: `V_(1)` mL of `K_(2)Cr_(2)O_(7)` solution of molarity `M_(1)`

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`[X]+H_(2)SO_(4) rarr [Y]` a colourless gas with irritating smell `[Y] + K_(2)Cr_(2)O_(7) + H_(2)SO_(4) rarr` green solution `[X]` and `[Y]` are

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When a mixture of solid NaCl, solid `K_(2)Cr_(2)O_(7)` is heated with conc. `H_(2)SO_(4)` orange red vapours are obtained. These are of the compound

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A gas turns lime water milky and acidified `K_(2)Cr_(2)O_(7)` solution green then gas is :

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A compound 'X' of the formula `C_(3)H_(8)O` gives iodoform test. On oxidation with acidified `K_(2)Cr_(2)O_(7)X` gave Y. Y also gives iodogorm test. T

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An aqueous solution of a gas (X) gives the following reactions : (i) It decolourizes an acified `K_(2)Cr_(2)O_(7)`. (ii) On boiling with `H_(2)O_(2)`,

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`SO_(2)` reduces acidified `K_(2)Cr_(2)O_(7)` to

Description : `SO_(2)` reduces acidified `K_(2)Cr_(2)O_(7)` to

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`CH_(3) - underset(OH)underset(|) overset(CH_(3))overset(|)(C) - CH_(3) underset("Cool") overset(NA_(2) Cr_(2)O_(7))rarr`?

Description : `CH_(3) - underset(OH)underset(|) overset(CH_(3))overset(|)(C) - CH_(3) underset("Cool") overset(NA_(2) Cr_(2)O_(7))rarr`?

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`FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_(2)O_(7)` ` P:FeCr_(2)O_(4)+NaOH+airto A+Fe_(2)O_(3)Q

Description : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_(2)O_(7)` ` P:FeCr_(2)O_(4)+NaOH+airto A+Fe_(2)O_(3)Q

Last Answer : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_ ... Dissolving in `H_(2)O` D. Dissolving in dil,HCl

`FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_(2)O_(7)` ` P:FeCr_(2)O_(4)+NaOH+airto A+Fe_(2)O_(3)Q

Description : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_(2)O_(7)` ` P:FeCr_(2)O_(4)+NaOH+airto A+Fe_(2)O_(3)Q

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`FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_(2)O_(7)` ` P:FeCr_(2)O_(4)+NaOH+airto A+Fe_(2)O_(3)Q

Description : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_(2)O_(7)` ` P:FeCr_(2)O_(4)+NaOH+airto A+Fe_(2)O_(3)Q

Last Answer : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_(2)O_(7)` ` ... D. `Na_(4)[Fe(OH)_(6)],H_(2)SO_(4)`

Determine the equivalent weight of the following oxidising and reducing agents : (a) `KMnO_(4)` (reacting in acidic medium `MnO_(4)^(-)rarrMn^(2+)`) (

Description : Determine the equivalent weight of the following oxidising and reducing agents : (a) `KMnO_(4)` (reacting in acidic medium `MnO_(4)^(-)rarrMn^(2+)`) (

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When `KMnO_(4)` acts as an oxidising agnet and ultimetely from `MnO_(4)^(2-), MnO_(2), Mn_(2)O_(3)`, and `Mn^(2+)`, then the number of electrons trans

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Some amount of "20V" `H_(2)O_(2)` is mixed with excess of acidified solution of Kl. The iodine so liberated required 200 mL of 0.1 N `Na_(2)S_(2)O_(3)

Description : Some amount of "20V" `H_(2)O_(2)` is mixed with excess of acidified solution of Kl. The iodine so liberated required 200 mL of 0.1 N `Na_(2)S_(2)O_(3)

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Some amount of "20V" `H_(2)O_(2)` is mixed with excess of acidified solution of Kl. The iodine so liberated required 200 mL of 0.1 N `Na_(2)S_(2)O_(3)

Description : Some amount of "20V" `H_(2)O_(2)` is mixed with excess of acidified solution of Kl. The iodine so liberated required 200 mL of 0.1 N `Na_(2)S_(2)O_(3)

Last Answer : Some amount of "20V" `H_(2)O_(2)` is mixed with excess of acidified solution of Kl. The iodine so liberated required ... . 0.8 g C. 4.2 g D. 0.98 g

Some amount of "20V" `H_(2)O_(2)` is mixed with excess of acidified solution of Kl. The iodine so liberated required 200 mL of 0.1 N `Na_(2)S_(2)O_(3)

Description : Some amount of "20V" `H_(2)O_(2)` is mixed with excess of acidified solution of Kl. The iodine so liberated required 200 mL of 0.1 N `Na_(2)S_(2)O_(3)

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In the reaction, `I_(2)+2S_(2)O_(3)^(2-) rarr 2I^(-)+S_(4)O_(6)^(2-)`. Equivalent wieght of iodine will be equal to

Description : In the reaction, `I_(2)+2S_(2)O_(3)^(2-) rarr 2I^(-)+S_(4)O_(6)^(2-)`. Equivalent wieght of iodine will be equal to

Last Answer : In the reaction, `I_(2)+2S_(2)O_(3)^(2-) rarr 2I^(-)+S_(4)O_(6)^(2-)`. Equivalent wieght of iodine ... B. Mol. wt./2 C. Mol. wt./4 D. None of these

Asserton :- The formal oxidation no. of sulphur in `Na_(2)S_(4)O_(6)` is `2.5` Reason :- Two S-atoms are not directly linked with O-atoms.

Description : Asserton :- The formal oxidation no. of sulphur in `Na_(2)S_(4)O_(6)` is `2.5` Reason :- Two S-atoms are not directly linked with O-atoms.

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The eq. wt. of `Na_(2)S_(2)O_(3)` as reductant in the reaction, `Na_(2)S_(2)O_(3)+H_(2)O+Cl_(2)rarrNa_(2)SO_(4)+2HCl+S` is :

Description : The eq. wt. of `Na_(2)S_(2)O_(3)` as reductant in the reaction, `Na_(2)S_(2)O_(3)+H_(2)O+Cl_(2)rarrNa_(2)SO_(4)+2HCl+S` is :

Last Answer : The eq. wt. of `Na_(2)S_(2)O_(3)` as reductant in the reaction, `Na_(2)S_(2)O_(3)+H_(2)O+Cl_(2)rarrNa_(2) ... wt.)/2 C. (Mol. wt.)/6 D. (Mol. wt.)/8

Oxidation number of sulphur in `Na_(2)S_(2)O_(3)` is

Description : Oxidation number of sulphur in `Na_(2)S_(2)O_(3)` is

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In the above reaction (in Q.99) `Na_(2)S_(2)O_(4)` acts as a

Description : In the above reaction (in Q.99) `Na_(2)S_(2)O_(4)` acts as a

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Aqueous solution of `Na_(2)S_(2)O_(3)` on reaction with `CI_(2)`, gives

Description : Aqueous solution of `Na_(2)S_(2)O_(3)` on reaction with `CI_(2)`, gives

Last Answer : Aqueous solution of `Na_(2)S_(2)O_(3)` on reaction with `CI_(2)`, gives A. `Na_(2)S_(2)O_(6)` B. `NaHSO_(4)` C. `NaCl` D. `NaOH`

The difference in the oxidation numbers of two types of sulphul atoms in `Na_(2)S_(4)O_(6)` is…..

Description : The difference in the oxidation numbers of two types of sulphul atoms in `Na_(2)S_(4)O_(6)` is…..

Last Answer : The difference in the oxidation numbers of two types of sulphul atoms in `Na_(2)S_(4)O_(6)` is…..

The product of the chemical reaction between `Na_(2)S_(2)O_(3)`, `Cl_(2)` and `H_(2)O` are

Description : The product of the chemical reaction between `Na_(2)S_(2)O_(3)`, `Cl_(2)` and `H_(2)O` are

Last Answer : The product of the chemical reaction between `Na_(2)S_(2)O_(3)`, `Cl_(2)` and `H_(2)O` are A. `HCl + Na_( ... + Na_(2)SO_(3)` D. `NaHClO_(3) + H_(2)O`

`Na_(2)S_(2)O_(3)` is prepared by :

Description : `Na_(2)S_(2)O_(3)` is prepared by :

Last Answer : `Na_(2)S_(2)O_(3)` is prepared by : A. reacting `H_(2)S_(2)O_(3)` with NaOH B. reacting `Na_( ... S D. reducing `Na_(2)SO_(4)` with S in acidic medium

In the above reaction (in Q.99) `Na_(2)S_(2)O_(4)` acts as a

Description : In the above reaction (in Q.99) `Na_(2)S_(2)O_(4)` acts as a

Last Answer : In the above reaction (in Q.99) `Na_(2)S_(2)O_(4)` acts as a A. 2 electron reducing ... C. 3 electron reducing agent D. 4 electron reducing agent

Aqueous solution of `Na_(2)S_(2)O_(3)` on reaction with `CI_(2)`, gives

Description : Aqueous solution of `Na_(2)S_(2)O_(3)` on reaction with `CI_(2)`, gives

Last Answer : Aqueous solution of `Na_(2)S_(2)O_(3)` on reaction with `CI_(2)`, gives A. `Na_(2)S_(2)O_(6)` B. `NaHSO_(4)` C. `NaCl` D. `NaOH`

The difference in the oxidation numbers of two types of sulphul atoms in `Na_(2)S_(4)O_(6)` is…..

Description : The difference in the oxidation numbers of two types of sulphul atoms in `Na_(2)S_(4)O_(6)` is…..

Last Answer : The difference in the oxidation numbers of two types of sulphul atoms in `Na_(2)S_(4)O_(6)` is…..

The product of the chemical reaction between `Na_(2)S_(2)O_(3)`, `Cl_(2)` and `H_(2)O` are

Description : The product of the chemical reaction between `Na_(2)S_(2)O_(3)`, `Cl_(2)` and `H_(2)O` are

Last Answer : The product of the chemical reaction between `Na_(2)S_(2)O_(3)`, `Cl_(2)` and `H_(2)O` are A. `HCl + Na_( ... + Na_(2)SO_(3)` D. `NaHClO_(3) + H_(2)O`

`Na_(2)S_(2)O_(3)` is prepared by :

Description : `Na_(2)S_(2)O_(3)` is prepared by :

Last Answer : `Na_(2)S_(2)O_(3)` is prepared by : A. reacting `H_(2)S_(2)O_(3)` with NaOH B. reacting `Na_( ... S D. reducing `Na_(2)SO_(4)` with S in acidic medium

`Na_(2)S_(2)O_(3)` may react with the compounds given in coloum I. `Na_(2)S_(2)O_(3)` exhibits the properties of the type given in the coloum II, matc

Description : `Na_(2)S_(2)O_(3)` may react with the compounds given in coloum I. `Na_(2)S_(2)O_(3)` exhibits the properties of the type given in the coloum II, matc

Last Answer : `Na_(2)S_(2)O_(3)` may react with the compounds given in coloum I. `Na_(2)S_(2)O_(3)` exhibits the ... "),("d)",I_(2),,"s) an antichlor"):}`

Statement -1 : Sodium thiosulphate is not prepared by boiling `Na_(2)SO_(3)` with S in acidic medium. Statement -2 : `Na_(2)S_(2)O_(3)+H^(+) to 2Na++H

Description : Statement -1 : Sodium thiosulphate is not prepared by boiling `Na_(2)SO_(3)` with S in acidic medium. Statement -2 : `Na_(2)S_(2)O_(3)+H^(+) to 2Na++H

Last Answer : Statement -1 : Sodium thiosulphate is not prepared by boiling `Na_(2)SO_(3)` with S in acidic medium. Statement ... +H^(+) to 2Na++H_(2)SO_(3)+Sdarr`

The primary standard solution for estimation of `Na_(2)S_(2)O_(3)` is

Description : The primary standard solution for estimation of `Na_(2)S_(2)O_(3)` is

Last Answer : The primary standard solution for estimation of `Na_(2)S_(2)O_(3)` is A. `I_(2)` solution B. `KMnO_(4)` C. `K_(2)Cr_(2)O_(7)` D. oxalic acid

Aqueous solution of `Na_(2)S_(2)O_(3)` on reaction with `CI_(2)`, gives

Description : Aqueous solution of `Na_(2)S_(2)O_(3)` on reaction with `CI_(2)`, gives

Last Answer : Aqueous solution of `Na_(2)S_(2)O_(3)` on reaction with `CI_(2)`, gives A. `Na_(2)S_(4)O_(6)` B. `NaHSO_(4)` C. NaCl D. NaOH

Select the correct statements about `Na_(2)S_(2)O_(3).5H_(2)O` :

Description : Select the correct statements about `Na_(2)S_(2)O_(3).5H_(2)O` :

Last Answer : Select the correct statements about `Na_(2)S_(2)O_(3).5H_(2)O` : A. It is also called as hypo B ... D. It is used to remove stains of `I_(2)`