`PH_(3) ("anhydrous") + HBr ("anhydrous") rarr X`. Identify X ?

1 Answer

Answer :

`PH_(3) ("anhydrous") + HBr ("anhydrous") rarr X`. Identify X ? A. `H_(3)BrO_(3)` B. `PH_(4)Br` C. `Br_(2)` D. `P_(4)`

Related questions

Description : `PH_(3) ("anhydrous") + HBr ("anhydrous") rarr X`. Identify X ?

Last Answer : `PH_(3) ("anhydrous") + HBr ("anhydrous") rarr X`. Identify X ? A. `H_(3)BrO_(3)` B. `PH_(4)Br` C. `Br_(2)` D. `P_(4)`

Description : `HBr` reacts with `CH_(2)=CH-OCH_(3)` under anhydrous conditions at room temperature to give:

Last Answer : `HBr` reacts with `CH_(2)=CH-OCH_(3)` under anhydrous conditions at room temperature to give: A. `H_(3)C-CHBr- ... (3)OH` D. `BrCH_(2)-CH_(2)-OCH_(3)`

Description : `P_(4)(s) + 3OH^(-) (aq) + 3H_(2)O (I) rarr PH_(3) (g) + 3H_(2)PO_(2)^(-) (aq)` In the above equation, the species getting oxidized and reduced respec

Last Answer : `P_(4)(s) + 3OH^(-) (aq) + 3H_(2)O (I) rarr PH_(3) (g) + 3H_(2)PO_(2)^(-) (aq)` In the above equation ... ` C. `P_(4) and H_(2)O` D. `P_(4) and P_(4)`

Description : `P_(4)(s) + 3OH^(-) (aq) + 3H_(2)O (I) rarr PH_(3) (g) + 3H_(2)PO_(2)^(-) (aq)` In the above equation, the species getting oxidized and reduced respec

Last Answer : `P_(4)(s) + 3OH^(-) (aq) + 3H_(2)O (I) rarr PH_(3) (g) + 3H_(2)PO_(2)^(-) (aq)` In the above equation ... ` C. `P_(4) and H_(2)O` D. `P_(4) and P_(4)`

Description : Which is the best description of the behaviour of bromine in the reaction given below `H_(2)O+Br_(2) rarr HOBr+HBr`

Last Answer : Which is the best description of the behaviour of bromine in the reaction given below `H_(2)O+ ... . Oxidized C. Reduced only D. Proton acceptor only

Description : Condiser the reactions, (i) `(CH_(3))_(2)CH-CH_(2)Broverset(C_(2)H_(5)OH)rarr(CH_(3))_(2)CH-CH_(2)OC_(2)H_(5)+HBr` (ii) `(CH_(3))_(2)CH-CH_(2)Broverse

Last Answer : Condiser the reactions, (i) `(CH_(3))_(2)CH-CH_(2)Broverset(C_(2)H_(5)OH)rarr(CH_(3))_(2)CH-CH_(2)OC_(2)H_(5) ... N^(1))` D. `S_(N^(2)) and S_(N^(2))`

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 : Identify A and B In following reaction, `H_2SO_4 + HBr to A + B + H_2O `

Last Answer : Identify A and B In following reaction, `H_2SO_4 + HBr to A + B + H_2O ` A. (A) `Br_2, SO_3` B. (B) ` ... C) `BrO_3^(-) , SO_3` D. (D) `Br_2 , SO_2`

Description : In the process of extraction of gold. Roasted gold ore `+CN^(-)+H_(2)O overset(O_(2))rarr [X]+OH^(-)` `[X]+Znrarr [Y]+Au` Identify the complexes `[X]

Last Answer : In the process of extraction of gold. Roasted gold ore `+CN^(-)+H_(2)O overset(O_(2))rarr [X]+OH^(-)` `[X]+ ... (4)]^(-),[Y] =[Zn (CN_(4))]^(-2)`

Description : In the process of extraction of gold, Roasted gold ore `+CN^(-)+H_2Ooverset(o_2)rarr[X]+OH^(-)` `[X]+Znrarr[Y]+Au` Identify the complexes [X] and [Y]

Last Answer : In the process of extraction of gold, Roasted gold ore `+CN^(-)+H_2Ooverset(o_2)rarr[X]+OH^(-)` `[X]+Znrarr[Y]+Au` ... _(4)]^(3-),Y=[Zn(CN)_(6)]^(2-)`

Description : The oxidation number of phosphorus in `PH_(4)^(+),PO_(2)^(3-),PO_(4)^(3-) and PO_(3)^(3-)` are respectively :-

Last Answer : The oxidation number of phosphorus in `PH_(4)^(+),PO_(2)^(3-),PO_(4)^(3-) and PO_(3)^(3-)` are respectively :- A. ... . `+3,-3,+5,+1` D. `-3,+1,+5,+3`

Description : 100 mL of `PH_(3)` on decomposition produced phosphorus and hydrogen. The change in volume is

Last Answer : 100 mL of `PH_(3)` on decomposition produced phosphorus and hydrogen. The change in volume is

Description : Arrange the following compounds in decreasing order of reactivity for EAR :- (I) `CH_(2)=CH_(2)` (II) `CH_(3)-CH=CH_(2)` (III) `Ph_(2)C=CH-CH_(3)` (IV

Last Answer : Arrange the following compounds in decreasing order of reactivity for EAR :- (I) `CH_(2)=CH_(2)` (II) `CH_(3)- ... I gt IV` D. `II gt III gt IV gt I`

Description : 100 mL of `PH_(3) on decomposition produced phosphorus and hydrogen. The change in volume is :-

Last Answer : 100 mL of `PH_(3) on decomposition produced phosphorus and hydrogen. The change in volume is :- A. 50 ... . 500 mL decrease C. 900 mL decrease D. nil

Description : White phosphorous on reaction with `NaOH` gives `PH_(3)` and

Last Answer : White phosphorous on reaction with `NaOH` gives `PH_(3)` and A. `Na_(2)HPO_(3)` B. `NaH_(2)PO_(2)` C. `NaH_(2)PO_(3)` D. `Na_(3)PO_(4)`

Description : (i) `NH_(3)` (ii) `N_(2)H_(4)` (iii) `HN_(3)` (iv) `PH_(3)` (v) `H_(2)S` (vi) `AsH_(3)` (vii) `SbH_(3)` (viii) `H_(2)Se` (ix) `H_(2)Te` Number of mole

Last Answer : (i) `NH_(3)` (ii) `N_(2)H_(4)` (iii) `HN_(3)` (iv) `PH_(3)` (v) `H_(2) ... lone pair of electrons on the central atom is present in pure s-orbital

Description : White phosphorous on reaction with `NaOH` gives `PH_(3)` and

Last Answer : White phosphorous on reaction with `NaOH` gives `PH_(3)` and A. `Na_(2)HPO_(3)` B. `NaH_(2)PO_(2)` C. `NaH_(2)PO_(3)` D. `Na_(3)PO_(4)`

Description : (i) `NH_(3)` (ii) `N_(2)H_(4)` (iii) `HN_(3)` (iv) `PH_(3)` (v) `H_(2)S` (vi) `AsH_(3)` (vii) `SbH_(3)` (viii) `H_(2)Se` (ix) `H_(2)Te` Number of mole

Last Answer : (i) `NH_(3)` (ii) `N_(2)H_(4)` (iii) `HN_(3)` (iv) `PH_(3)` (v) `H_(2) ... lone pair of electrons on the central atom is present in pure s-orbital

Description : The electronic spectrum of `[Ni(H_(2)O)_(6)]^(++)` shows as band at `8500cm^(-1)` due to d-d transiton . `[Ph_(4)As]_(2)[NiCl_(4)]` will have such a t

Last Answer : The electronic spectrum of `[Ni(H_(2)O)_(6)]^(++)` shows as band at `8500cm^(-1)` due to d-d transiton ... cm^(-1)` at A. 3778 B. 8500 C. 7250 D. 850

Description : Among the following carbocations : (I) `Ph_(2)overset(+)"C"CH_(2)Me (II) PhCH_(2)CH_(2)overset(+)"C"HPh` `"(III) "Ph_(2)CHoverset(+)"C"HMe" (IV) "Ph_(

Last Answer : Among the following carbocations : (I) `Ph_(2)overset(+)"C"CH_(2)Me (II) PhCH_(2)CH_( ... B. `IgtIIgtIIIgtIV` C. `IIgtIgtIVgtIII` D. `IgtIVgtIIIgtII`

Description : Ethyl alcohol forms X `CaCl_(2)^(3). C_(2)H_(5)OH` when `C_(2)H_(5)OH` reacts with respective anhydrous salts. Then

Last Answer : Ethyl alcohol forms X `CaCl_(2)^(3). C_(2)H_(5)OH` when `C_(2)H_(5)OH` reacts with respective anhydrous salts. Then ... = 4` D. `X = 4, Y = 4, Z = 4`

Description : If a material has the capacity to behave either as an acid or a base it is said to be: w) amorphous x) amphoteric y) anhydrous z) aklaline

Last Answer : ANSWER: X -- AMPHOTERIC

Description : The percent composition by mass of copper in anhydrous cupric sulfate is about: w) 10% x) 25% y) 40% z) 75%

Last Answer : ANSWER: C -- 40% 

Description : Identify the possible link 'A' in the following food chain : Plant `rarr` insect `rarr` frog `rarr` 'A' `rarr` eagle:

Last Answer : Identify the possible link 'A' in the following food chain : Plant `rarr` insect `rarr` frog `rarr` 'A ... eagle: A. Wolf B. Cobra C. Parrot D. Rabbit

Description : Identify A and B in the following reaction `C_(2)H_(5) - Cl overset(A)rarr C_(2)H_(5) OH overset(B)leftarrow C_(2)H_(5)Cl`

Last Answer : Identify A and B in the following reaction `C_(2)H_(5) - Cl overset(A)rarr C_(2)H_(5) OH overset(B)leftarrow C_ ... 2)` D. `A = AgNO_(2), B = KNO_(2)`

Description : Identify the metal `M` whose extraction is based on the following reactions: `MS +2O_(2)rarr MSO_(4)` `2MS +3O_(2)rarr 2MO +2SO_(2)` `MS +2MO rarr 3M

Last Answer : Identify the metal `M` whose extraction is based on the following reactions: `MS +2O_(2)rarr MSO_(4)` `2MS + ... 4),Pb, PbO` D. `PbS,PbSO_(4) , PbO`

Description : One moles of anhydrous `AB` dissolves in water and liberates `21.0 J mol^(-1)` of heat. The valueof `DeltaH^(Theta)` (hydration) of `AB` is `-29.4 J m

Last Answer : One moles of anhydrous `AB` dissolves in water and liberates `21.0 J mol^(-1)` of heat. The valueof `DeltaH^(Theta) ... mol^(-1)` D. `-8.4 J mol^(-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 : In which following statement are correct. (a) Anhydrous hydrogen fluroide is a liquid at ordianry temperature while other halogen acid are gases. (b)

Last Answer : In which following statement are correct. (a) Anhydrous hydrogen fluroide is a liquid at ordianry temperature while other ... (B) b C. (C) c D. d

Description : Which of the following structures correspond to the product expected, when excess of `C_(6)H_(6)` reacts with `CH_(2)Cl_(2)` in presence of anhydrous

Last Answer : Which of the following structures correspond to the product expected, when excess of `C_(6)H_(6)` reacts with ` ... anhydrous `AlCl_(3)`? A. B. C. D.

Description : From amongest the following alcohols, the one that would react fastest with conc. HCl and anhydrous `ZnCl_(2)` is

Last Answer : From amongest the following alcohols, the one that would react fastest with conc. HCl and anhydrous ` ... . 2-Methylpropan-2-ol D. 2-Methylpropanol-1

Description : Which alcohol is most reactive towards `HCl` in the presence of anhydrous `ZnCl_(2)`?

Last Answer : Which alcohol is most reactive towards `HCl` in the presence of anhydrous `ZnCl_(2)`? A. primary B. secondary C. tertiary D. all of these

Description : The process of converting hydrated Alumina into anhydrous Alumina is called

Last Answer : The process of converting hydrated Alumina into anhydrous Alumina is called A. Roasting B. Smelting C. Dressing D. Calcination

Description : The process of converting hydrated Alumina into anhydrous Alumina is called

Last Answer : The process of converting hydrated Alumina into anhydrous Alumina is called A. roasting B. smelting C. dressing D. calcination

Description : The process of converting hydrated Alumina into anhydrous Alumina is called

Last Answer : The process of converting hydrated Alumina into anhydrous Alumina is called A. Roasting B. Smelting C. Dressing D. Calcination

Description : `XeF_(6)` dissolves in anhydrous `HF` to give a good conducting solution which contains:

Last Answer : `XeF_(6)` dissolves in anhydrous `HF` to give a good conducting solution which contains: A. `H^(+)` and ` ... +)` and `F^(-)` ions D. none of these

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 : How do you calculate purity on anhydrous basis?

Last Answer : What is the answer ?

Description : Proteins are soluble in (A) Anhydrous acetone(B) Aqueous alcohol (C) Anhydrous alcohol (D) Benzene

Last Answer : Answer : B

Description : Methanol cannot be dried with anhydrous CaCl2 because - (1) CaCl2 dissolves in it (2) it is not good dehydrating agent (3) it forms a solid CaCl2 × 4CH3OH (4) it reacts with CH3OH

Last Answer : (3) it forms a solid CaCl2 × 4CH3OH

Description : Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40°C? (A) Silicone rubber, teflon, porcelain and wood (B) Nickel, monel, stainless steel and graphite (C) Aluminium, copper, high silicon iron (D) Brass, cast iron, mild steel and tin

Last Answer : (D) Brass, cast iron, mild steel and tin

Description : Nickel made/clad equipments are suitable for handling (A) Ammonia (both aqueous & anhydrous) (B) Fruit juices, milk & its products and caustic soda solution (C) Nitric acid & hydrochloric acid (concentrated) (D) Sulphuric acid (concentrated)

Last Answer : (B) Fruit juices, milk & its products and caustic soda solution

Description : Tin vessels are corroded by (A) Anhydrous ammonia (B) Aromatic solvents (C) Synthetic detergent solution (D) None of these

Last Answer : (D) None of these

Description : Mild steel storage vessels are suitable for the storage of (A) Anhydrous ammonia (B) Fatty acids (C) Hydrochloric acid (95%) (D) Sulphuric acid (25%)

Last Answer : (A) Anhydrous ammonia

Description : In laboratory preparation of H2O2 from hydrated barium peroxide with sulphuric acid , anhydrous barium peroxide is not used Why ?

Last Answer : Ans-Because it forms a protective layer of barium sulphate over anhydrous barium peroxide

Description : Explain why anhydrous HCl is a bad conductor electricity while aqueous HCl is a good conductor of electricity.

Last Answer : Ans: Hcl is a covalent compound and has no ion but when dissolve into solution it under go dissociation and produce ions in the solution and hence conduct electricity.

Description : For concentrating an aqueous solution of a material like anhydrous Na2SO4, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator. (A) High pressure (B) Vacuum (C) Backward feed (D) None of these

Last Answer : (B) Vacuum

Description : Copper sulphate crystals when heated strongly, lose their water of crystallization to give anhydrous copper sulphate accompanied by a change in color from: (a). Blue to green (b). Blue to white (c). Blue to sky blue (d). Blue to grey

Last Answer : (b). Blue to white

Description : Anhydrous ammonia have equivalent acidity a. 93 b. 110 c. 128 d. 148

Last Answer : d. 148

Description : Reaction of anhydrous liquid ammonia with ortho-phosphoric acid produces (A) Ammonium phosphate (B) Superphosphate (C) Triple superphosphate (D) None of these

Last Answer : (A) Ammonium phosphate