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The correct order for the increasing acidic strength of oxidies of nitrogen is
The oxidation state in dereases in the order +1<+2<+3<+4<+5.
In fact, N2O and NO are neutral oxides.
In the compounds of the type POX3, the P atom multiple bond is of the type
In compounds of POX3 type P is sp3 hybridised. P has unfilled d-orbitals which are capable of overlapping with p-orbitals of oxygen to form bond.
Which of the following statements are not true for phosphorus
Due to greater bond dissociation energy and greater bond order nitrogen is almost inert. Phosphorus is very reactie due to the presence of weak single P-P covalent bonds among phosphorus atom in P4 molecule.
Dipole moment is highest for
N is more electroneative than I.The difference of electronegativity is largest in the case of atoms N and I. The dipole moment of the bonded atoms adds to that of the lone pair and thus polarity increases.
The basicity of the acids H3PO2, H3PO3, H3PO4 and H4P2O7 are respectively
H3PO2, H3PO3, H3PO4 and H4P2O7 are monobasic, dibasic, tribasic and tetrabasic respectively.
Which of the following flourides has the least capacity as fluoride ion acceptor
AsF5 and SbF5 and to a lesser extent PF5 are potent flouride ion acceptors, forming ions.
The ionic character of H-X is highest in
The ionic charcter is expected to increase as the electronegativity of the halogen increases. Thus due to the highest electronegativity difference in H and F, the H-F bond should be most ionic.
% of ionic character=16×ΔEN+3.5×(ΔEN)2
H-I bond being the weakest gives the hydrogen readily. HI is also the strongest acid because of its least bond dissociation energy.The acidic character thus follows the order HI>HBr>HCl>HF.
The strongest acid is
The acidic strength of all these acids is almost same because each acid contains one terminal oxygen atom and the electronegativity of other atoms (P and H) present in these acids is almost same. However, strongest acid among these should be H4P2O7
Which of the following HY(hydra-acid of halogen) is the strongest acid, best reducing agent, is the least stable and is easily oxidised
HI is strongest acid because of its least bond dissociation energy. The increasing order of acidic strength is HF<HCl<HBr<HI. The decreasing order of thermal stability is HF>HCl>HBr>HI.
Strength of halogen acids, HF,HCl,HBr and HI varies in the order
HI is the strongest acid because of lare size of I atom and least bond dissociation energy of H-I bond.
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