`H_(3)PO_(2)` has the name and basicity respectively:

H_(3)PO_(2) is the formula for one of the phosphorus acids. Its name and basicity are respectively

H_(3)PO_(2) is the molecular formula of an acid of phosphorus. Its name and basicity respectively are

H_(3)PO_(2) is the molecular formula of an acid of phosphorus. Its name and basicity respectively are

pH of 0.1M Na_(2)HPO_(4) and 0.2M NaH_(2)PO_(4) are respectively: (pK_(a)"for" H_(3)PO_(4) are 2.12, 7.21 and 12.0 for respective dissociation to H_2PO_(4)^(-), HPO_(4)^(2-) and PO_(4)^(3-)) :

Which one is correct statement? (A) Basicity of \(H_{3}PO_{4}\) and \(H_{3}PO_{3}\) are 3 and 3 respectively (B) Basicity of \(H_{3}PO_{4}\) and \(H_{3}PO_{3}\) are 3 and 1 respectively (C) Basicity of \(H_{3}PO_{4}\) and \(H_{3}PO_{3}\) are "2" and "2" respectively (D) Basicity of \(H_{3}PO_{4}\) and \(H_{3}PO_{3}\) are "3" and "2" respectively

Which one is correct statement? Basicity of \(H_{3}PO_{4}\)and \(H_{3}PO_{3}\) is "3" and "3" respectively Acidity of \(H_{3}PO_{4}\) and \(H_{3}PO_{3}\) is "3" and 3 respectively Acidity of \(H_{3}PO_{4}\) and \(H_{3}PO_{3}\) is "3" and 2 respectively Basicity of \(H_{3}PO_{4}\) and \(H_{3}PO_{3}\) is "3" and "2" respectively

The number of P - H bonds (s) in H_(3)PO_(2), H_(3)PO_(3) and H_(3)PO_(4) , respectively, is