Description : Assertion: Reaction of `SO_(2)` and `H_(2)S` in the presence of `Fe_(2)O_(3)` catalyst gives elemental sulphur. Reason: `SO_(2)` is a reducing agent.
Last Answer : Assertion: Reaction of `SO_(2)` and `H_(2)S` in the presence of `Fe_(2)O_(3)` catalyst gives ... is False. D. If both Assertion & Reason are False.
Description : STATEMENT-1 : `H_(2)SO_(4)` can not act as reducing agent. STATEMENT-2 : Sulphur can not increase its oxidation number beyond `+6`.
Last Answer : STATEMENT-1 : `H_(2)SO_(4)` can not act as reducing agent. STATEMENT-2 : Sulphur can not increase ... False. D. If both Assertion & Reason are False.
Description : In the following reaction, `SO_(4)` acts as a reducing agent: `SO_(2)+Cl_(2)+2H_(2)O to H_(2)SO_(4)+3HCl` Find the equivalent weight of `SO_(2)`.
Last Answer : In the following reaction, `SO_(4)` acts as a reducing agent: `SO_(2)+Cl_(2)+2H_(2)O to H_(2)SO_(4)+3HCl` Find the equivalent weight of `SO_(2)`.
Description : In which of the following reaction `H_(2)O_(2)` acts as reducing agent :-
Last Answer : In which of the following reaction `H_(2)O_(2)` acts as reducing agent :- A. `2FeCl_(2)+2HCl+H_(2)O_(2)rarr ... 3)+H_(2)O_(2)rarr H_(2)SO_(4)+H_(2)O`
Description : `SO_(2)` is a strong reducing agent however it also act as an oxidising agent Which of the following reactions shows its oxidising nature ?
Last Answer : `SO_(2)` is a strong reducing agent however it also act as an oxidising agent Which ... colloidal sulphur D. Turning acidified dichromate paper green
Description : Among the following the number of compounds that can act as dehydrating agent are …… `Conc. H_(2)SO_(4),"Anhyd". CaCl_(2),Conc. HNO_(3), CaO, CuSO_(4)
Last Answer : Among the following the number of compounds that can act as dehydrating agent are `Conc. H_(2)SO_(4),"Anhyd" ... CaO, CuSO_(4).5H_(2)O, P_(2)O_(5)`
Description : `SO_(2)` gas used as a bleaching agent. Its bleaching action is :
Last Answer : `SO_(2)` gas used as a bleaching agent. Its bleaching action is : A. temporary and due ... nature D. permenent and due to its reducing nature
Description : What mass of NaCl would be decomposed by 98 g of `H_(2)SO_(4)` if 120 g of `NaHSO_(4)` and 27 .5 g of HCl are produced in a reaction. Assuming that la
Last Answer : What mass of NaCl would be decomposed by 98 g of `H_(2)SO_(4)` if 120 g of `NaHSO_(4)` and 27 .5 g of HCl ... .95 g B. 49 .5 g C. 0. 495 g D. 495 h
Description : Assertion (A): Dehydration of alcohols can be carried out with Conc `H_(2)SO_(4)` but not with conc HCl Reason (R): `H_(2)SO_(4)` is dibasic while HCl
Last Answer : Assertion (A): Dehydration of alcohols can be carried out with Conc `H_(2)SO_(4)` but not with conc HCl ... R is false D. A is false but R is true
Description : Carbon dioxide is – (1) a reducing agent (2) an oxidising agent (3) a dehydrating agent (4) a bleaching agent
Last Answer : (1) a reducing agent Explanation: A good reducing agent must be able to donate electrons readily. This means that it must not have very much attraction for electrons. Carbon dioxide is just like any other oxide and can be reduced to its respective elements by applied energy.
Description : Carbon dioxide is (1) a reducing agent (2) an oxidising agent (3) a dehydrating agent (4) a bleaching agent
Last Answer : a reducing agent
Description : Hot conc. `H_(2)SO_(4)` acts as moderately strong oxidising agent. It oxidises both metals and non-metals. Which of the following elements is oxidised
Last Answer : Hot conc. `H_(2)SO_(4)` acts as moderately strong oxidising agent. It oxidises both metals and non-metals. Which ... products ? A. Cu B. S C. C D. Zn
Description : 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
Last Answer : When `H_(2)O_(2)` is reacted with `K_(2)Cr_(2)O_(7)" in dilute "H_(2)SO_(4)` and then ether ... layer gets -colour A. Red B. Yellow C. Blue D. Green
Description : The oxidation state of sulhur in `H_(2)SO_(5)` and chromium in `K_(2)Cr_(2)O_(7)` respectively is :-
Last Answer : The oxidation state of sulhur in `H_(2)SO_(5)` and chromium in `K_(2)Cr_(2)O_(7)` respectively is :- A. 8, 6 B. 4, 6 C. 8, 8 D. 6, 6
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 : Among the following, the number of compounds that can react with `PCl_(5)` to give `POCl_(3)` is `O_(2)`,`CO_(2)`,`SO_(2)`,`H_(2)O`,`H_(2)SO_(4)`,`P_(
Last Answer : Among the following, the number of compounds that can react with `PCl_(5)` to give `POCl_(3)` is `O_(2)`,`CO_(2) ... 2)O`,`H_(2)SO_(4)`,`P_(4)O_(10)`.
Description : How many compound(s) or iron (s) can be oxidised by `H_(2)O_(2)` among the following (i) `AsO_(3)^(2)` (ii) `SO_(4)^(2-)` (iii) `Fe_(2) (SO_(4))_(3)`
Last Answer : How many compound(s) or iron (s) can be oxidised by `H_(2)O_(2)` among the following (i) `AsO_(3)^(2)` (ii) ... ` (v) `H_(2)S` (vi) PbS (vii) `O_(3)`
Description : Cold dil. `H_(2)SO_(4)` will completely dissolve : (i) Pb (ii) `Fe_(3)O_(4)` (iii) Fe (iv) Cu (v) Mg (vi) MgO (vii) `CoCO_(3)` (viii) `CuCO_(2)` (ix)
Last Answer : Cold dil. `H_(2)SO_(4)` will completely dissolve : (i) Pb (ii) `Fe_(3)O_(4)` (iii) Fe (iv) Cu (v) ... ) `CoCO_(3)` (viii) `CuCO_(2)` (ix) `SrCO_(3)`
Description : `N_(2)O_(4), (HPO_(2))_(2), H_(2)CO_(3), SO_(2), SO_(3), P_(4)O_(10) H_(2)SO_(4), N_(2)O_(3), HNO_(3), H_(3)PO_(3)`. (a) Among the above compounds, co
Last Answer : `N_(2)O_(4), (HPO_(2))_(2), H_(2)CO_(3), SO_(2), SO_(3), P_(4)O_(10) H_(2)SO_(4), N_(2)O_(3 ... `d pi - p pi` bond are y. Given the answer as `x + y`
Description : `[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
Last Answer : `[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 ... 2-), H_(2)S` D. `CO_(3)^(2-), CO_(2)`
Description : 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
Last Answer : When a mixture of solid NaCl, solid `K_(2)Cr_(2)O_(7)` is heated with conc. `H_(2 ... B. chromyl chloride C. chromic chloride D. chromic sulphate
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 : 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 : Match the following: Column I(reaction) (a) `H_(2)O_(2)+underset("2moles")(ClSO_(3)H) rarr` (b)`SO_(3)+HClrarr` c) `SO_(3)+HBr rarr` (d) `underset(("c
Last Answer : Match the following: Column I(reaction) (a) `H_(2)O_(2)+underset("2moles")(ClSO_(3) ... chloride t)Hydrogen halide is obtained as the product.
Description : Which of the following compounds can be used for drying of `H_(2)S` gas? I. Conc `H_(2)SO_(4)` II. `P_(4)O_(10)` III. Anhydrous `CaC1_(2)` IV. Anhydro
Last Answer : Which of the following compounds can be used for drying of `H_(2)S` gas? I. Conc `H_(2)SO_(4)` II. ` ... IV B. only I C. only II and III D. only III
Description : 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
Last Answer : I. `H_(2)S` reduces acidified `KMnO_(4)` to `MnSO_(4)` II. `H_(2)S` reduces acidified `K_(2)Cr_(2) ... and III C. only II and III D. I,II,III and IV
Description : Assertion: `SO_(3)` acts as an oxidising agent as well as a reducing agent Reason: `SO_(2)` acts as an oxidising as well as a reducing agent
Last Answer : Assertion: `SO_(3)` acts as an oxidising agent as well as a reducing agent Reason: `SO_(2)` acts as an oxidising as well as a reducing agent
Description : `SO_(2)` is more powerful reducing agent in:
Last Answer : `SO_(2)` is more powerful reducing agent in: A. Acid medium B. Alkaline medium C. Neutral medium D. None of these
Description : `H_(2)C_(2)O_(4)` and `NaHC_(2)O_(4)` behave as acids as well as reducing agents. Which are the correct statements?
Last Answer : `H_(2)C_(2)O_(4)` and `NaHC_(2)O_(4)` behave as acids as well as reducing agents. Which are the ... is oxidised by same volume of 1 (M) `KMnO_(4)`
Description : Consider the following statements in the extraction of iron from haematite: (I) `CO`is the main reducing agent (II) `Fe_(2)O_(3)`is used to oxidise th
Last Answer : Consider the following statements in the extraction of iron from haematite: (I) `CO`is the main reducing agent (II) ... I, II and III D. I, II and IV
Description : In the nitration of benzene with a mixture of conc. `HNO_(3)` and conc. `H_(2)SO_(4)`, the active species involved is :
Last Answer : In the nitration of benzene with a mixture of conc. `HNO_(3)` and conc. `H_(2)SO_(4)`, ... ion B. nitrate ion C. nitronium ion D. nitrogen dioxide
Description : Assertion :- Bromide ion is serving as a reducing agent in the reaction `2MnO_(4)^(-)(aq.)+Br^(-)(aq.)+H_(2)Orarr2MnO_(2)(aq.)+BrO_(3)^(-)(aq.)+2OH^(-
Last Answer : Assertion :- Bromide ion is serving as a reducing agent in the reaction `2MnO_(4)^(-)(aq.)+Br^( ... is False. D. If both Assertion & Reason are False.
Description : Hydrazine `N_(2)H_(4)` acts as a reducing agent. To prepare 100 ml of 2 N hydrazine solution, the weight required will be
Last Answer : Hydrazine `N_(2)H_(4)` acts as a reducing agent. To prepare 100 ml of 2 N hydrazine solution, the weight required will ... B. 1.6 g C. 3.2 g D. 0.8 g
Description : Which one is the oxidising agent in the reaction given below `2CrO_(4)^(2-)+2H^(+)rarrCr_(2)O_(7)^(-2)+H_(2)O`
Last Answer : Which one is the oxidising agent in the reaction given below `2CrO_(4)^(2-)+2H^(+)rarrCr_(2)O_(7)^(-2)+H_(2)O` ... 2)O_(7)^(-2)` C. `Cr^(++)` D. None
Description : Hydrogen peroxide acts both as an oxidising and as a reducing agent depending upon the nature of the reacting species. In which of the following cases
Last Answer : Hydrogen peroxide acts both as an oxidising and as a reducing agent depending upon the nature of the reacting species. In ... C. `SO_(3)^(2-)` D. `KI`
Last Answer : Hydrogen peroxide acts both as an oxidising and as a reducing agent depending upon the nature of the reacting species. In ... ` C. `SO_(3)^(2-)` D. Kl
Description : The oxidation state of mo in its oxido-complex - complex species `[Mo_(2)O_(4)[C_(2)H_(4))_(2)(H_(2)O)]^(2-)` is
Last Answer : The oxidation state of mo in its oxido-complex - complex species `[Mo_(2)O_(4)[C_(2)H_(4))_(2)(H_(2)O)]^(2-)` is A. `+2 ` B. `+3` C. `+4` D. `+5`
Description : Which of the following act both as an oxidising as well as reducing agent ?
Last Answer : Which of the following act both as an oxidising as well as reducing agent ? A. `HNO_(2)` B. `H_(2)O_(2)` C. `H_(2)S` D. `SO_(2)`
Description : A sulphur containing species that can not be a reducing agent is :-
Last Answer : A sulphur containing species that can not be a reducing agent is :- A. `SO_(2)` B. `SO_(3)^(-2)` C. `H_(2)SO_(4)` D. `S_(2)O_(3)^(2-)`
Description : Assertion: Bleaching action of `SO_(2)` is temporary whereas bleaching action of `Cl_(2)` is permanent. Reason: Bleaching by `SO_(2)` and `Cl_(2)` is
Last Answer : Assertion: Bleaching action of `SO_(2)` is temporary whereas bleaching action of `Cl_(2)` is permanent. ... )` and `Cl_(2)` is due to oxidation.
Description : Asserarion:Bleaching action action of `SO_(2)` is temporary and by reduction. Reason: The colour of material is regained due to oxidation by air.
Last Answer : Asserarion:Bleaching action action of `SO_(2)` is temporary and by reduction. Reason: The colour of material is regained due to oxidation by air.
Description : Assertion : Dry `SO_(2)` does not bleach dry flowers Reason: The bleaching action of `SO_(2)` is due to its readucing nature
Last Answer : Assertion : Dry `SO_(2)` does not bleach dry flowers Reason: The bleaching action of `SO_(2 ... Statement-I is not correct and Statement-II is correct
Description : Assertion : Bleacing action of `SO_(2)` is due to reduction Reason : Bleaching action of all bleaching agents is due to reduction
Last Answer : Assertion : Bleacing action of `SO_(2)` is due to reduction Reason : Bleaching action of all ... -I is not correct and Statement-II is correct
Last Answer : Asserarion:Bleaching action action of `SO_(2)` is temporary and by reduction. Reason: The colour of ... -I is not correct and Statement-II is correct
Description : During bleaching action `SO_(2)` converts into
Last Answer : During bleaching action `SO_(2)` converts into A. `SO_(3)` B. `H_(2)SO_(3)` C. `H_(2)HO_(4)` D. `H_(2)S_(2)O_(7)`