P-block Elements | BORON FAMILY | Compounds of BORON | Borax, Boric acid, Diborane | Jay Daiya Sir

Boron compound behave as Lewis acid because of

The property of hydrides of p-block elements mostly depends on : (i) electronegativity differnece between central atom and hydrogen. (ii) size of central atom (iii) number of valence electrons in central atom Some undergo hydrolysis in which central is less electronegative, react with OH^(-) to give hydrogen. while acidic property of hydride in a period depends on electronegativity of central atoms. i.e. more electronegative is the atom, more acidic is hydirde. In a group, acidic property is proportional to size of central atom. Some electron deficient hydride behaves as Lewis acid while only one hydride of an element in p-block behaves as Lewis base with central atom's electronegativity is close to hydrogen has no reaction with water. Which one is the weakest acid among the following ?

The property of hydrides of p-block elements mostly depends on : (i) electronegativity differnece between central atom and hydrogen. (ii) size of central atom (iii) number of valence electrons in central atom Some undergo hydrolysis in which central is less electronegative, react with OH^(-) to give hydrogen. while acidic property of hydride in a period depends on electronegativity of central atoms. i.e. more electronegative is the atom, more acidic is hydirde. In a group, acidic property is proportional to size of central atom. Some electron deficient hydride behaves as Lewis acid while only one hydride of an element in p-block behaves as Lewis base with central atom's electronegativity is close to hydrogen has no reaction with water. Which hydride has no reaction wiht water ?

The property of hydrides of p-block elements mostly depends on : (i) electronegativity differnece between central atom and hydrogen. (ii) size of central atom (iii) number of valence electrons in central atom Some undergo hydrolysis in which central is less electronegative, react with OH^(-) to give hydrogen. while acidic property of hydride in a period depends on electronegativity of central atoms. i.e. more electronegative is the atom, more acidic is hydirde. In a group, acidic property is proportional to size of central atom. Some electron deficient hydride behaves as Lewis acid while only one hydride of an element in p-block behaves as Lewis base with central atom's electronegativity is close to hydrogen has no reaction with water. Which one is strongest base ?

The electronic configuration of four elements are: (I) [Kr]5s^(1) (II) [Rn]5f^(14)6d^(1)7s^(2) (III) [Ar]3d^(10)4s^(2)4p^(5) (IV) [Ar]3d^(6)4s^(2) Consider the following statements: (I I shows variable oxidation state (ii) II is a d-block element (iii) The compound formed between I and III is covalent (iv) IV shows single oxidation state which statement is true (T) or false (F)?

p-block elements form acidic, basic and amphoteric oxides. Explain each property by giving two examples, and also write the reactions of these oxides with water.

If P, Q, R and S are elements of 3rd period of p-block in modern periodic table, among these one element is metal and rest are non-metals and their order of electronegativity is given as: P lt Q lt R lt S Q. Chloride compound of which element is hypovalent?

If P, Q, R and S are elements of 3rd period of p-block in modern periodic table, among these one element is metal and rest are non-metals and their order of electronegativity is given as: P lt Q lt R lt S Q. Chloride compound of which element is hypovalent?

Consider the following statements regarding compounds which cause global warming X is a hydrocarbon, A and B are neutral oxides of nitrogen, C is a blue coloured gas and D is released when H_(2)S is reacted with oxygen. Identify the correct statements about X, A , B, C and D. (I) X is mainly present in natural gas (II) In A and B one is diamagnetic and another one is paramagnetic (III) C can be identified by using liquid element in d-block (IV) D causes acid rain

The correct statements among I to III regarding group 13 element for oxides are: (I) Boron trioxide is acidic (II) Oxides of aluminium and gallium are amphoteric. (III) Oxides of indium and thallium are basic.