Which one of the following compounds is NOT a protonic acid?
(А)`B(OH)_(3)`
(B)`PO(OH)_3`
(C) `SO(OH)_2`
(D) `SO_2(OH)_2`

Which of the following compound will not react with l_(2)//OH^(-) .

Which of the following compound will not react with I_(2)//OH^(-) .

Which of the following is an amphoteric hydroxide? (a) Mg(OH)_2 (b) Be(OH)_2 (c) Sr(OH)_2 (d) Ca(OH)_2

Which of the following compounds is/are partially soluble or insoluble in NH_(4)OH solution: (1) Fe(OH)_(3) (2) Ag_(2)CrO_(4) (3) Al(OH)_(3) (4) Ag_(2)CO_(3) (5) Ni(OH)_(2)

Which of the following is/are soluble in excess of NaOH,(X) Pb(OH)_(2)(Y), CuS,(Z),Al(OH)_(3)

Which out of the following is : ( a) the weakest acid (b) the strongest acid ? (i) C_(2)H_(5)OH (ii) CH_(3)COOH (iii) C_(6)H_(5)OH (iv) H_(2)O

The valency of calcium is 2. Write the valencies of other radicals in the following compounds : (a) CaO (b) Ca(OH)_(2) (c ) CaCO_(3) (d) CaCl_(2)