Which of the following salt/s of `H_(3)PO_(3)` exists ? (I)) `NaH_(2)PO_(3)` (II) `Na_(2)HPO_(3)` (III) `Na_(3)PO_(3)`

1 Answer

Answer :

Which of the following salt/s of `H_(3)PO_(3)` exists ? (I)) `NaH_(2)PO_(3)` (II) `Na_(2)HPO_(3)` ... B. I, II and III C. II and III only D. III only

Related questions

Description : Which of the following salt/s of `H_(3)PO_(3)` exists ? (I)) `NaH_(2)PO_(3)` (II) `Na_(2)HPO_(3)` (III) `Na_(3)PO_(3)`

Last Answer : Which of the following salt/s of `H_(3)PO_(3)` exists ? (I)) `NaH_(2)PO_(3)` (II) `Na_(2)HPO_(3)` ... B. I, II and III C. II and III only D. III only

Description : Find the the valency factor for following acids `(i) CH_(3)CO OH " " (ii) NaH_(2)PO_(4) " " (iii) H_(3)BO_(3)`

Last Answer : Find the the valency factor for following acids `(i) CH_(3)CO OH " " (ii) NaH_(2)PO_(4) " " (iii) H_(3)BO_(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 : `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 : `{:("column I","column II"),("(A)"4.1gH_(2)SO_(3),"(p) 200 mL of 0.5 N base is used for complete neutralization"),("(B)" 4.9 g H_(3)PO_(4),"(q) 200 mi

Last Answer : `{:("column I","column II"),("(A)"4.1gH_(2)SO_(3),"(p) 200 mL of 0.5 N base is used for ... Na_(2)CO_(3),"(s)May react with an oxidising agent"):}`

Description : How many of the following compounds are possible products when chlorine is passed through hypo solution (i) S (ii) HCl (iii) `Na_(2)S` (iv) `Na_(2)SO_

Last Answer : How many of the following compounds are possible products when chlorine is passed through hypo solution (i) S (ii) ... )S_(4)O_(6)` (vi) `HClO_(4)`

Description : How many of the following compounds are possible products when chlorine is passed through hypo solution (i) S (ii) HCl (iii) `Na_(2)S` (iv) `Na_(2)SO_

Last Answer : How many of the following compounds are possible products when chlorine is passed through hypo solution (i) S (ii) ... )S_(4)O_(6)` (vi) `HClO_(4)`

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 volume (in ml) of 0.5 M NaOH required for the complete reaction with 150 ml of 1.5M `H_(3)PO_(3)` solution is

Last Answer : The volume (in ml) of 0.5 M NaOH required for the complete reaction with 150 ml of 1.5M `H_(3)PO_(3)` solution is A. 1350 B. 900 C. 1250 D. 1150

Description : How many N atom are present in final product `overset(Sn//HCl)rarr overset(NaNO_(2)//HCl)rarr overset(H_(3)PO_(2))rarr` Final product.

Last Answer : How many N atom are present in final product `overset(Sn//HCl)rarr overset(NaNO_(2)//HCl)rarr overset(H_(3)PO_(2))rarr` Final product.

Description : How many toluidines on reaction with `NaNO_(2)//HCl` followed by `H_(3)PO_(2)` treatment gives Toluene.

Last Answer : How many toluidines on reaction with `NaNO_(2)//HCl` followed by `H_(3)PO_(2)` treatment gives Toluene.

Description : Good reducing nature of `H_(3)PO_(2)` is attributed to the presence of :

Last Answer : Good reducing nature of `H_(3)PO_(2)` is attributed to the presence of : A. one `P - H` bond B. One `P - ... . Two `P - OH` bonds D. Two `P - H` bonds

Description : For `H_(3)PO_(3)` and `H_(3)PO_(4)` the correct choice is

Last Answer : For `H_(3)PO_(3)` and `H_(3)PO_(4)` the correct choice is A. `H_(3)PO_(3)` is dibasic and ... reducing D. `H_(3)PO_(3)` is tribasic and non-reducing

Description : Number of acids having central atom in `+3` oxidation state among the following is (a) `HNO_(2)` (b) `HNO_(3)` (c) `H_(3)PO_(2)` (d) `H_(3)PO_(3)` (e)

Last Answer : Number of acids having central atom in `+3` oxidation state among the following is (a) `HNO_(2)` (b) `HNO_(3)` (c ... (2)S_(2)O_(8)` (k) `H_(2)SO_(4)`

Description : The true statement for the acids of phosphorus `H_(3)PO_(2), H_(3)PO_(3) and H_(3)PO_(4)` is

Last Answer : The true statement for the acids of phosphorus `H_(3)PO_(2), H_(3)PO_(3) and H_(3)PO_(4)` is A. the ... (3)PO_(3) gt H_(3)PO_(4)` D. All of these

Description : The true statement for the acids of phosphorus. `H_(3)PO_(2) ,H_(3)PO_(3)` and `H_(3)PO_(4)` is:

Last Answer : The true statement for the acids of phosphorus. `H_(3)PO_(2) ,H_(3)PO_(3)` and `H_(3)PO_(4 ... ` is obtained by alkaline hydrolysis of `P_(4)` (white)

Description : Good reducing nature of `H_(3)PO_(2)` is attributed to the presence of :

Last Answer : Good reducing nature of `H_(3)PO_(2)` is attributed to the presence of : A. one `P - H` bond B. One `P - ... . Two `P - OH` bonds D. Two `P - H` bonds

Description : For `H_(3)PO_(3)` and `H_(3)PO_(4)` the correct choice is

Last Answer : For `H_(3)PO_(3)` and `H_(3)PO_(4)` the correct choice is A. `H_(3)PO_(3)` is dibasic and ... reducing D. `H_(3)PO_(3)` is tribasic and non-reducing

Description : Number of acids having central atom in `+3` oxidation state among the following is (a) `HNO_(2)` (b) `HNO_(3)` (c) `H_(3)PO_(2)` (d) `H_(3)PO_(3)` (e)

Last Answer : Number of acids having central atom in `+3` oxidation state among the following is (a) `HNO_(2)` (b) `HNO_(3)` (c ... (2)S_(2)O_(8)` (k) `H_(2)SO_(4)`

Description : The true statement for the acids of phosphorus `H_(3)PO_(2), H_(3)PO_(3) and H_(3)PO_(4)` is

Last Answer : The true statement for the acids of phosphorus `H_(3)PO_(2), H_(3)PO_(3) and H_(3)PO_(4)` is A. the ... (3)PO_(3) gt H_(3)PO_(4)` D. All of these

Description : The true statement for the acids of phosphorus. `H_(3)PO_(2) ,H_(3)PO_(3)` and `H_(3)PO_(4)` is:

Last Answer : The true statement for the acids of phosphorus. `H_(3)PO_(2) ,H_(3)PO_(3)` and `H_(3)PO_(4 ... ` is obtained by alkaline hydrolysis of `P_(4)` (white)

Description : A bottle of `H_(3)PO_(4)` solution contains 70% acid. If the density of the solution is `1.54 g cm^(-3)` , the volume of the `H_(3)PO_(4)` solution re

Last Answer : A bottle of `H_(3)PO_(4)` solution contains 70% acid. If the density of the solution is `1.54 g cm^(-3) ... is . A. 90 mL B. 45mL C. 30mL D. 23mL

Description : What volume of 0.05 M `Ca(OH)_(2)` solution is needed for complete conversion of 10mL of 0.1 M `H_(3)PO_(4)` into `Ca(H_(2)PO_(4))_(2)` ?

Last Answer : What volume of 0.05 M `Ca(OH)_(2)` solution is needed for complete conversion of 10mL of 0.1 M `H_(3)PO_(4)` into `Ca(H_(2)PO_(4))_(2)` ?

Description : The volume of 3 M `Ba(OH)^(2)` solution required to neutralize completely 120 mL of 1.5M `H_(3)PO_(4)` solution is :

Last Answer : The volume of 3 M `Ba(OH)^(2)` solution required to neutralize completely 120 mL of 1.5M `H_(3)PO_(4)` solution is :

Description : 1 mol of `H_(3)PO_(2), H_(3)PO_(3)` and `H_(3)PO_(4)` will neutralise x mol `NaOH`, y mol of `Ca(OH)_(2)` and z mol of `Al(OH)_(3)` respectively (assu

Last Answer : 1 mol of `H_(3)PO_(2), H_(3)PO_(3)` and `H_(3)PO_(4)` will neutralise x mol `NaOH`, y mol of `Ca(OH)_(2)` and ... :1` B. `1:2:3` C. `3:2:1` D. `1:1:1`

Description : Equivalent weight of `H_(3)PO_(4)` in each of the reaction will be respectively - `H_(3)+OH^(-)rarrH_(2)PO_(4)+H_(2)` `H_(3)PO_(4)+2OH^(-)rarrHPO_(4)^

Last Answer : Equivalent weight of `H_(3)PO_(4)` in each of the reaction will be respectively - `H_(3)+OH^(-)rarrH_(2)PO_(4 ... 67 C. 98, 32.67, 49 D. 32.67, 49, 98

Description : What is the basicity of `H_(3)PO_(3)` ?

Last Answer : What is the basicity of `H_(3)PO_(3)` ?

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 : 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 : If 25mL of a `H_(2)SO_(4)` solution reacts completely with `1.06g` of pure `Na_(2)CO_(3)` , what is the normality of this acid sotution :

Last Answer : If 25mL of a `H_(2)SO_(4)` solution reacts completely with `1.06g` of pure `Na_(2)CO_(3)` , what is the normality of ... N B. 0.5 N C. 1.8 N D. 0.8 N

Description : Among the following complexes : `K_(3)[Fe(CN)_(6)],[Co(NH_(3))_(6)]Cl_(3)` , `Na_(3)[Co ( o x )_(3)],[Ni(H_(2)O)_(6)]Cl_(2)`, `K_(2)[Pt(CN)_(4)]` and

Last Answer : Among the following complexes : `K_(3)[Fe(CN)_(6)],[Co(NH_(3))_(6)]Cl_(3)` , `Na_(3)[Co ( o x )_(3)],[Ni(H_( ... ,M,N B. K,N,O,P C. L,M,O,P D. L,M,N,O

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 : (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 : 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 : (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 : Which of the following anions are producing same gas on treatment with `(Zn+ " dil." H_(2)SO_(4))`. `I :SO_(3)^(2-) " " II : HSO_(3)^(-) " " III : S^(

Last Answer : Which of the following anions are producing same gas on treatment with `(Zn+ " dil." H_(2)SO_(4))`. `I : ... I, II, III and IV D. I, III and IV only

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 : `HNO_(3)+P_(4)O_(10) to HPO_(3) + X` in the above reaction the product `X` is :

Last Answer : `HNO_(3)+P_(4)O_(10) to HPO_(3) + X` in the above reaction the product `X` is : A. `NO_(2)` B. `N_(2)O_(3)` C. `N_(2)O_(4)` D. `N_(2)O_(5)`

Description : How many `P = O` bonds are present in `(HPO_(3))_(3)` ?

Last Answer : How many `P = O` bonds are present in `(HPO_(3))_(3)` ?

Description : `HNO_(3)+P_(4)O_(10) to HPO_(3) + X` in the above reaction the product `X` is :

Last Answer : `HNO_(3)+P_(4)O_(10) to HPO_(3) + X` in the above reaction the product `X` is : A. `NO_(2)` B. `N_(2)O_(3)` C. `N_(2)O_(4)` D. `N_(2)O_(5)`

Description : How many `P = O` bonds are present in `(HPO_(3))_(3)` ?

Last Answer : How many `P = O` bonds are present in `(HPO_(3))_(3)` ?

Description : `S_(1):(HPO_(3))_(n)` can be prepared by heating phosphorous acid and bromine in a sealed tube. `S_(2)` : dry iodine reacts with ozone and formed yell

Last Answer : `S_(1):(HPO_(3))_(n)` can be prepared by heating phosphorous acid and bromine in a sealed tube. `S_(2)` : ... below 369 K. A. FTF B. TTF C. TTT D. TFF

Description : Which of the following complexes can exists as enantiomers ? Draw their structures `(a) cis-[Co(NH_(3))_(4)Br_(2)]^(+) " " (b) cis-[Cr(H_(2)O)_(2)(en)

Last Answer : Which of the following complexes can exists as enantiomers ? Draw their structures `(a) cis-[Co(NH_(3))_(4)Br_(2)]^ ... [Co(NH_(3))_(2)(en)_(2)]^(2+)`

Description : What are the value of p,q,r, and s for the following reaction `" "pO_(3) + qHI to rI_(2) + sH_(2)O`

Last Answer : What are the value of p,q,r, and s for the following reaction `" "pO_(3) + qHI to rI_(2) + sH_(2)O` A. 1,6,3,1 B. 1,6,3,3 C. 1,6,6,3 D. 1,6,3,6

Description : Oxidation number of P in `PO_(4)^(3-)`, of S in `SO_(4)^(2-)` and that of `Cr_(2)O_(7)^(2-)` are respectively

Last Answer : Oxidation number of P in `PO_(4)^(3-)`, of S in `SO_(4)^(2-)` and that of `Cr_(2)O_(7)^(2-)` are ... . `+3, +6 and +5` D. `+5, +3, and +6`

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)`