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

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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)`

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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 ... C. It can be used as antichlor D. All of the above

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.

Last Answer : Asserton :- The formal oxidation no. of sulphur in `Na_(2)S_(4)O_(6)` is `2.5` Reason :- ... Reason is False. D. If both Assertion & Reason are False.

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

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`

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`

Description : 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

Last Answer : 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.

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

Last Answer : Oxidation number of sulphur in `Na_(2)S_(2)O_(3)` is A. `+2` B. `+4` C. `-2` D. 0

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

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`

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…..

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

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

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`

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…..

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

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 ... 56 mL B. 112 mL C. 168 mL D. 224 mL

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

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 ... 37.2 mL C. 5.6 mL D. 22.4 mL

Description : 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 +..`

Last Answer : In the test for iodine, `I_(2)` is treated with sodium thiosulphate `(Na_(2)S_(2)O_(3))` : `Na_(2)S_(2)O_(3 ... (4)` C. `Na_(2)S` D. `Na_(3)ISO_(4)`

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"):}`

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`

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

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

Last Answer : `Na_(2)S_(2)O_(3)` is oxidised by `I_(2)` to A. `Na_(2)S` B. `Na_(2)SO_(4)` C. `NaHSO_(3)` D. `Na_(2)S_(4)O_(6)`

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

Description : The two sulphur atoms in `Na_(2)S_(2)O_(3)` have

Last Answer : The two sulphur atoms in `Na_(2)S_(2)O_(3)` have A. `-2` and `+4` oxidation states B. `+4 ... . `+6` and `-2` oxidation states D. same oxidation state

Description : The oxidation number of sulphur in `Na_(2)S_(4)O_(6)` is

Last Answer : The oxidation number of sulphur in `Na_(2)S_(4)O_(6)` is A. `-2.5` B. `+2.5` C. `-10` D. `+10`

Description : `5H_(2)C_(2)O_(4)(aq)+2MnO_(4)(aq)+6H^(+)(aq) to 2Mn^(2+)(aq)+10CO_(2)(g)+8H_(2)O(l)` Oxalic acid, `H_(2)C_(2)O_(2)` , reacts with permanganate ion ac

Last Answer : `5H_(2)C_(2)O_(4)(aq)+2MnO_(4)(aq)+6H^(+)(aq) to 2Mn^(2+)(aq)+10CO_(2)(g)+8H_(2)O(l)` Oxalic acid, `H_ ... A. 13.5 mL B. 18.5 mL C. 33.8 mL D. 84.4 mL

Description : `Na_(2)B_(4)O_(7).10H_(2)O` is correctly represent by

Last Answer : `Na_(2)B_(4)O_(7).10H_(2)O` is correctly represent by A. `2NaBO_(2).Na_(2)B_(2)O_(3).10H_(2)O` B. `Na_ ... H_(2)O)_(4)O_(7)].6H_(2)O` D. None of these

Description : `{:(,"Compounds",,"O.N."),((A),KMn^(**)O_(4),(1),+4),((B),Ni^(**)(CO)_(4),(2),+7),((C),[Pt^(**)(NH_(3))Cl_(2)]Cl_(2),(3),0),((D),Na_(2)O_(2)^(**),(4),

Last Answer : `{:(,"Compounds",,"O.N."),((A),KMn^(**)O_(4),(1),+4),((B),Ni^(**)(CO)_(4),(2),+7),((C),[Pt^(**)(NH_(3) ... ),(2,3,1,4):}` D. `{:(A,B,C,D),(4,1,2,3):}`

Description : Oxalic acid, `H_(2)C_(2)O_(4)`, reacts with paramagnet ion according to the balanced equation `5H_(2)C_(2)O_(4)(aq)+2MnO_(4)^(-)(aq)+6H^(+)(aq)hArr2Mn

Last Answer : Oxalic acid, `H_(2)C_(2)O_(4)`, reacts with paramagnet ion according to the balanced equation `5H_(2)C_(2)O_(4)(aq ... A. 13.6 B. 18.5 C. 33.8 D. 84.4

Description : Oxalic acid, `H_(2)C_(2)O_(4)`, reacts with paramagnet ion according to the balanced equation `5H_(2)C_(2)O_(4)(aq)+2MnO_(4)^(-)hArr2Mn^(2+)(aq)+10CO_

Last Answer : Oxalic acid, `H_(2)C_(2)O_(4)`, reacts with paramagnet ion according to the balanced equation `5H_(2)C_(2)O_(4)(aq ... A. 13.6 B. 18.5 C. 33.8 D. 84.4

Description : `underset("Brown")([(NH_(3))_(5)Co-O-O-Co(NH_(3))_(5)]^(4+)) underset("oxidise")overset([S_(2)O_(8)]^(2-))tounderset("Green")([(NH_(3))_(5)Co-O-O-Co(N

Last Answer : `underset("Brown")([(NH_(3))_(5)Co-O-O-Co(NH_(3))_(5)]^(4+)) underset("oxidise")overset([S_(2)O_(8) ... III " "IV" & "III" "III),("brown "" green"):}`

Description : Which of the following species has the same number of `X-O-X` linkages, where `X=S` or P? I. `S_(4)O_(6)^(2-)` II. `S_(3)O_(9)` III. `S_(2)O_(5)^(2-)`

Last Answer : Which of the following species has the same number of `X-O-X` linkages, where `X=S` or P? I. `S_(4)O_(6)^( ... `II and IV` C. `I and II` D. `I and IV`

Description : Among the electrolytes `Na_(2),SO_(4),CaCl_(2),Al_(2)(SO_(4))_(3) and NH_(4)Cl`, the most effective coagulating agent for `Sb_(2)S_(3)` sol is

Last Answer : Among the electrolytes `Na_(2),SO_(4),CaCl_(2),Al_(2)(SO_(4))_(3) and NH_(4)Cl`, the most effective coagulating ... `Al_(2)(SO_(4))_(3)` D. `NH_(4)Cl`

Description : Consider the following statements, I. S-S bond is present in `H_(2)S_(2)O_(6).` II. In peroxodisulphuric acid `(H_(2)S_(2)O_(8))`, sulphur is in `+6`

Last Answer : Consider the following statements, I. S-S bond is present in `H_(2)S_(2)O_(6).` II. In ... in `+6` oxidation state. The correct set of statement is

Description : The correct order of sulphur - oxygen bond energy in `S_(2)O_(3)^(2-), SO_(4)^(2-), SO_(3) and S_(2)O_(6)^(2-)` is

Last Answer : The correct order of sulphur - oxygen bond energy in `S_(2)O_(3)^(2-), SO_(4)^(2-), SO_(3) and S_(2)O_(6)^( ... (4)^(2-) lt SO_(3) lt S_(2)O_(3)^(2-)`

Description : The correct order of sulphur - oxygen bond energy in `S_(2)O_(3)^(2-), SO_(4)^(2-), SO_(3) and S_(2)O_(6)^(2-)` is

Last Answer : The correct order of sulphur - oxygen bond energy in `S_(2)O_(3)^(2-), SO_(4)^(2-), SO_(3) and S_(2)O_(6)^( ... (4)^(2-) lt SO_(3) lt S_(2)O_(3)^(2-)`

Description : Identify the correct sequence of increasing of `pi-` bonds in the structure of the following molecules `:` `(I)H_(2)S_(2)O_(6)" "(II)H_(2)S_(2)O_(3)"

Last Answer : Identify the correct sequence of increasing of `pi-` bonds in the structure of the following molecules `:` `(I)H_(2) ... I C. II, I, III D. I, III,II

Description : Identify the correct sequence of increasing of `pi-` bonds in the structure of the following molecules `:` `(I)H_(2)S_(2)O_(6)" "(II)H_(2)S_(2)O_(3)"

Last Answer : Identify the correct sequence of increasing of `pi-` bonds in the structure of the following molecules `:` `(I)H_(2) ... i C. ii, I, iii D. I, iii, ii

Description : The correct set of oxidation numbers of sulphur atoms in `H_(2)S_(2)O_(3)` is/are:

Last Answer : The correct set of oxidation numbers of sulphur atoms in `H_(2)S_(2)O_(3)` is/are: A. `+6,-2` B. `+4,-2` C. `+2,+4` D. `+5,-1`

Description : The heat of solution of anhydrous `CuSO_(4)` and `CuSO_(4).5H_(2)O` are -15.89 and 2.80 Kcal `mol^(-1)` respectively. What will be the heat of hydrati

Last Answer : The heat of solution of anhydrous `CuSO_(4)` and `CuSO_(4).5H_(2)O` are -15.89 and 2.80 Kcal `mol^(-1) ... `18.69` Kcal C. `-28.96` Kcal D. 28.96 Kcal

Description : How much amount of `CuSO_(4).5H_(2)O` required for liberation of `2,55gI_(2)` when titrated with KI

Last Answer : How much amount of `CuSO_(4).5H_(2)O` required for liberation of `2,55gI_(2)` when titrated with KI A. 2.5 gm B. 4.99 gm C. 2.4 gm D. 1.2 gm

Description : `2KMnO_(4)+5H_(2)S+6H^(+)rarr2Mn^(2+)+2K^(+)+5S+8H_(2)O`. In the above reaction, how many electrons would be involved in the oxidaton of 1 mole of red

Last Answer : `2KMnO_(4)+5H_(2)S+6H^(+)rarr2Mn^(2+)+2K^(+)+5S+8H_(2)O`. In the above reaction, how many ... mole of reduction? A. Two B. Five C. Ten D. One

Description : The molar mass of `CuSO_(4).5H_(2)O` is 249. Its equivalent mass in the reaction (a) and (b) would be (a) Reaction `CuSO_(4)+Kirarr"Product"` (b) Elec

Last Answer : The molar mass of `CuSO_(4).5H_(2)O` is 249. Its equivalent mass in the reaction (a) and (b) would be (a) ... ) 249 (b) 124.5 D. (s) 124.5 (b) 249

Description : The weight of `1xx10^(22)` molecules of `CuSO_(4).5H_(2)O` is

Last Answer : The weight of `1xx10^(22)` molecules of `CuSO_(4).5H_(2)O` is A. 14.59 g B. 415 .9 g C. 4. 159 g D. None of these

Description : Co-ordination number of Cr in `CrCl_(3^.)5H_(2)O` is six. The volume of 0.1 N `AgNO_(3)` needed to ppt. the chorine in outer sphere in 200 ml of 0.01

Last Answer : Co-ordination number of Cr in `CrCl_(3^.)5H_(2)O` is six. The volume of 0.1 N `AgNO_(3)` ... of 0.01 M solution of he possible complex es is/are:

Description : Among `[Ni(CO)_(4)], [NiCl_(4)]^(2-), [Co (NH_(3))_(4) Cl_(2)] Cl, Na_(3) [CoF_(6)], Na_(2)O_(2)` and `CsO_(2)`, the total number of paramagnetic comp

Last Answer : Among `[Ni(CO)_(4)], [NiCl_(4)]^(2-), [Co (NH_(3))_(4) Cl_(2)] Cl, Na_(3) [CoF_(6)], ... total number of paramagnetic compounds is A. 2 B. 3 C. 4 D. 5

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

Last Answer : `CH_(3) - underset(OH)underset(|) overset(CH_(3))overset(|)(C) - CH_(3) underset("Cool") overset(NA_(2) ... (3))overset(|)(C) - CH_(3)` D. No reaction

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

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)` ... B. C and Al C. C in both D. Al in both