What is the correct order of boiling point of Group 15 elements hydride?
What is the correct order of boiling point of Group 15 elements hydride?
The vander Waal’s forces in SbH, become stronger than intermolecular H-bonds in NH3. As a result, boiling point of SbH, becomes more than that of NH3. Hence, the correct sequenceof boiling points PH3.
Which hydride of group 15 elements has highest boiling point?
However, ammonia has higher boiling point than phosphine. This is due to the presence of intermolecular hydrogen bonding interactions in ammonia molecules.
What is the correct order for boiling point of hydride?
Melting point: NH3>SbH3>AsH3>PH3. C. Boiling point: NH3>SbH3>AsH3>PH3.
What is the trend of boiling point in Group 15?
Nitrogen and Phosphorus are non-metals, Arsenic and Antimony are metalloids and Bismuth is a metal. These changes can be attributed to the decrease in Ionization enthalpy and increase in atomic size. Boiling points also, in general, show an increasing trend as you move down.
Why does boiling point increase down group 15?
The elements included in group number 15 are nitrogen, phosphorus, arsenic, antimony and bismuth. While moving down the group the atomic size of the element increases because an extra shell is added as the number of periods increases. So the boiling point of Sb is greater than Bi.
What is the order of reducing power of hydrides of group 15 members?
The reducing character of hydrides of group 15 elements increases from top to bottom because the E-H strength (Here E= N, P, As, Sb, or Br) bond decreases down the group due to an increase in the size of the central atom.
Which is the strongest reducing agent among group 15 hydrides?
BiH3
Therefore, BiH3 is the strongest reducing agent among all hydrides in the group 15 elements.
Why does boiling point increase down Group 15?
Why does boiling point increase down group 17?
The melting and boiling points increase down the group because of the van der Waals forces. The size of the molecules increases down the group. This increase in size means an increase in the strength of the van der Waals forces.
Why does boiling point increase down the group?
Which is the lowest boiling point in Group 15 hydrides?
Taken alone, this would mean that NH3 would have the lowest boiling point, but we know that NH3 has hydrogen bonding due to nitrogen’s electronegativity. Of all Group 15 hydrides, PH3 has the smallest polarizability and exhibits no hydrogen bonding, so it must have the lowest boiling point.
What are the boiling points of Group 15 elements?
The boiling point of hydrides decreases from ammonia to phosphine and afterward increments from phosphine to bismuth. A similar pattern is watched for their melting points. Two types of oxides are formed in group 15 elements.
How are hydrides of the 15th group related?
And down the group reducing power increases. Boiling point of hydrides increases from PH3 to BiH3 but NH3 has exceptionally high B.P. due to presence of intermolecular hydrogen bonding. The hydrides of group 15, due to availability of lone pair on central atom act as Lewis bases. The basic character decreases down the group.
Where are the group 15 elements on the periodic table?
Group 15 elements are also called Nitrogen family includes nitrogen phosphorus, arsenic, antimony and bismuth elements. The p-block elements are also known as the Representative Elements which is placed on the right side of the main periodic table.