Description : Asseration: Number of `S-S` bonds in `H_(2)S_(n)O_(6)` is (n-1). Reason: `H_(2)S_(n)O_(6)` shows `HO_(3)S-underset((n-2))(S)-SO_(3)H`
Last Answer : Asseration: Number of `S-S` bonds in `H_(2)S_(n)O_(6)` is (n-1). Reason: `H_(2)S_(n)O_(6)` shows `HO_(3)S-underset((n-2))(S)-SO_(3)H`
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
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 : 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 : STATEMENT-1: The oxidation state of S in `H_(2)S_(2)O_(8)` is 6. STATEMENT-2: Maximum oxidation state of A is 6 because the maximum oxidation state of
Last Answer : STATEMENT-1: The oxidation state of S in `H_(2)S_(2)O_(8)` is 6. STATEMENT-2: Maximum ... D. Statement-I is not correct and Statement-II is correct
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
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
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 : The number of S-S bonds in sulphur trioxide trimer `(S_(3)O_(9))` is
Last Answer : The number of S-S bonds in sulphur trioxide trimer `(S_(3)O_(9))` is A. three B. two C. one D. zero
Last Answer : The number of S-S bonds in sulphur trioxide trimer `(S_(3)O_(9))` is A. Three B. Two C. One D. Zero
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 : Assertion :- A sol of `As_(2)S_(3)` prepared by the action of `H_(2)S` on `As_(2)O_(3)` is negatively charge. Reason :- Due to adsorption of `S^(-2)`
Last Answer : Assertion :- A sol of `As_(2)S_(3)` prepared by the action of `H_(2)S` on `As_(2)O_(3) ... Reason is False. D. If both Assertion & Reason are False.
Description : Thiosulphate ion `(S_(2)O_(3)^(2-))` on acidification changes to `SO_(2)` along the precipitation of sulpur, `.^(35)S^(32) SO_(3)^(2-) + 2H^(+) to H_(
Last Answer : Thiosulphate ion `(S_(2)O_(3)^(2-))` on acidification changes to `SO_(2)` along the precipitation of sulpur, ` ... ` is in both D. `S^(35)` is in none
Description : The oxidation number of sulphur in `H_(2)S_(2)O_(8)` is:
Last Answer : The oxidation number of sulphur in `H_(2)S_(2)O_(8)` is: A. `+2` B. `+6` C. `+7` D. `+12`
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 : `S_(1): 2Se_(2)Cl_(2)rarr SeCl_(4)+3Se` `S_(2)` : Dioxides like `MnO_(2), PbO_(2)` do not form `H_(2)O_(2)` with dilute acids but they evolve oxygen w
Last Answer : `S_(1): 2Se_(2)Cl_(2)rarr SeCl_(4)+3Se` `S_(2)` : Dioxides like `MnO_(2), PbO_(2)` do not ... when boiled with water. A. FTTT B. TFTT C. FFTT D. TTTF
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 : KI in acetone, undergoes `S_(N)2` reaction with each of `P,Q ,R` and S The rates of the reaction very as `underset(P)(H_(3)C-Cl)` .
Last Answer : KI in acetone, undergoes `S_(N)2` reaction with each of `P,Q ,R` and S The rates of the reaction very as ` ... R gt Q gt S D. R gt P gt S gt Q
Description : The `S_(N^(1))` reactivity of the following halides will be in the order: (i) `(CH_(3))_(3)C-Br` (ii) `(C_(6)H_(5))CHBr` (iii) `(C_(6)H_(5))_(2)C(CH_(
Last Answer : The `S_(N^(1))` reactivity of the following halides will be in the order: (i) `(CH_(3))_(3)C-Br` (ii) `(C_ ... D. (iii) gt (ii) gt (i) gt (iv) gt (v)
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 : 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 : `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 : `n(CF_(2)=CF_(2))overset((NH_(4))_(2)S_(2)O_(8))underset(Heat)toX` Here , X is:
Last Answer : `n(CF_(2)=CF_(2))overset((NH_(4))_(2)S_(2)O_(8))underset(Heat)toX` Here , X is: A. PVC B. PMMA C. PAN D. none of these
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 : 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 : 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
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 : 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 oxidation states of sulphur in the anions `SO_(3)^(2-), S_(2)O_(4)^(2-)`, and `S_(2)O_(6)^(2-)` follow the order
Last Answer : The oxidation states of sulphur in the anions `SO_(3)^(2-), S_(2)O_(4)^(2-)`, and `S_(2)O_(6)^(2-)` follow ... (6)^(2-)ltS_(2)O_(4)^(2-)ltSO_(3)^(2-)`
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 : Compound (A) `C_(8)H_(9)Br`, gives a white precipitate when warmed with alcoholic `AgNO_(3)`. Oxidation of (A) gives an acid (B),`C_(8)H_(6)O_(4)`. (B
Last Answer : Compound (A) `C_(8)H_(9)Br`, gives a white precipitate when warmed with alcoholic `AgNO_(3)`. Oxidation of ... . Identify the compound (A) A. B. C. D.
Description : To a 25 mL `H_(2)O_(2)` solution excess acidified solution of Kl was added. The iodine liberated 20 ml of 0.3 N sodium thiosulphate solution. Use thes
Last Answer : To a 25 mL `H_(2)O_(2)` solution excess acidified solution of Kl was added. The iodine liberated 20 ml of ... strength of `H_(2)O_(2)` is 1.344 L
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 : An aqueous solution containing `1 M NiSO_(4) & 1 M S_(2) O_(8)^(2-)` is electrolysed using palladium electrode, at `25^(@)C` `{:(Ni^(+2)+2e^(-) rarrNi
Last Answer : An aqueous solution containing `1 M NiSO_(4) & 1 M S_(2) O_(8)^(2-)` is electrolysed using palladium electrode, ... is `2H^(+) + 2e^(-) rarr H_(2)`
Description : When `S_(2)O_(8)^(2-)` oxidise `Fe^(2+)` then product formed is :-
Last Answer : When `S_(2)O_(8)^(2-)` oxidise `Fe^(2+)` then product formed is :- A. `s_(2)O_(6)^(2-)` B. `SO_(4)^(2-)` C. `S_(2)O_(8)^(2-)` D. `SO_(5)^(2-)`
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 : `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 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 : 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)`
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