What are the hydrides of group 15?

What are the hydrides of group 15?

Pnictogen hydrides or hydrogen pnictides are binary compounds of hydrogen with pnictogen (/ˈpnɪktədʒən/ or /ˈnɪktədʒən/; from Ancient Greek: πνῑ́γω “to choke” and -gen, “generator”) atoms (elements of group 15: nitrogen, phosphorus, arsenic, antimony, and bismuth) covalently bonded to hydrogen.

What properties does group 15 have?

Periodic Trends in Group 15 Elements

What is the common property of pnictogens?

The pnictogens are solids at room temperature, except for nitrogen, which is a gas. The defining characteristic of pnictogens is that atoms of these elements have 5 electrons in their outer electron shell.

What are the uses of group 15?

Because of their valence, pnictide atoms are connected by a covalent triple bond. Phosphorus is used in matches, fireworks, and fertilizer. It’s also used to make phosphoric acid. Arsenic is toxic.

Which hydrides of group 15 is most stable?

As we move down the group, stability of hydride decreases so NH3 is most stable.

Which of the following hydrides of group 15 H bonding take place?

Among group 15 hydrides, ammonia has the highest bond angle.

What do elements in group 15 have in common?

Group 15 (VA) contains nitrogen, phosphorous, arsenic, antimony, and bismuth. Elements in Group 15 have five valence electrons. Because the elements can either gain three electrons or lose five to gain a stable configuration, they more often form covalent compounds unless bonded to an active metal.

Why are Group 15 elements called Pnicogens?

Group 15 elements are also known as pnictogens because in Greek pigeon means to cholk or stifle. In the absence of the oxygen, molecular nitrogen has this property. That’s why group 15 elements are known as either nitrogen family or pnictogens.

What are the trends in Group 15?

All Group 15 elements tend to follow the general periodic trends:

• Electronegativity (the atom’s ability of attracting electrons) decreases down the group.
• Ionization energy (the amount of energy required to remove an electron from the atom in its gas phase) decreases down the group.

Which hydride is least likely to possess reducing property?

a) H2O b) H2S c) H2Te d) H2Se. Among the following, the hydride which is not a reducing agent is (a)H₂O.

Which hydride of group 15 is least stable?

The least stable hydride of 15th group elements is

• B. PH3.
• C. AsH3.
• D. BiH3.

Which hydride of group 15 has largest bond angle?

ammonia
Among group 15 hydrides, ammonia has the highest bond angle.

Which one of the following group 15 hydrides is the strongest reducing agent?

BiH3
BiH3 is the strongest reducing agent among the hydrides of 15 group elements as Bi – H bond dissociation energy is very less.

Which of the following property increases down the group in nitrogen family?

4) Physical Properties Nitrogen is a diatomic gas, while the rest of the elements are solids in nature. Moving down a group, metallic character increases.

Why does the boiling point of group 15 hydrides increase down the group?

With increase in the atomic radii, the size of hydrides also increases. With increase in the size, the extent of van der Waals forces also increase. With increase in van der Waals forces, the boiling point increases. Thus, when you move down the group 15, the boiling points of its hydrides will increase.

Which hydride has reducing property?

NH3 is a mild reducing agent, and BiH3 has the strongest reducing character amongst all hydrides of group 15.

• The trend of group 15 hydride based on reducing character is as given below.
• Stability decreases down the group as the bond dissociation energy decreases.

Which hydride is most likely to possess reducing property?

Therefore, $Bi{{H}_{3}}$ is the strongest reducing agent among all hydrides in the group 15 elements.

Which hydrides of group 15 has the lowest BP?

Among the hydrides of Group – 15 elements, which have the:-

• A. Lowest boiling point – phosphine.
• B. Maximum basic character – ammonia.
• C. Highest bond angle – ammonia.
• D. All are correct.

Why bih3 is strongest reducing agent among all the hydrides of group 15?

Solution : Doen the group `(darr)` i.e, from N to Bi, the atomic size increases, hence the bond length `A-H` increases consequently `A-H` bond strength decreases and tendency to behave as reducing agent increases i.e., `BiH_3` is the strongest reducing agent amongst all the hydrides of group 15 elements.

Why does reducing property of hydrides increase down the group?

As the size of the element E down the group increases and thus the bond dissociation energy decreases. This facilitates the dissociation of Hydrogen atoms and hence down the group, thus the reducing character increases.

Why does the boiling point of Group 15 hydrides increase?

Boiling point of group 15 hydrides increases because of increase in size of central atom . Thermal stability decreases due to increase in bond length between central atom and hydrogen. , studied Electronics and Communication Engineering & Cosmology and Particle Physics at Manipal Institute Of T…

Why do hydrides become less stable as they move down the group?

With the increase in the size of the central atom, the E – H bond becomes weaker. where E is nitrogen ,phosphorus, arsenic,antimony , bismuth. With the increase in size, the overlapping between the orbitals of E and hydrogen will not be effective. This accounts for the decrease in the stability of hydrides as we move down the group

What is the solubility of the 15th group of elements?

In general the solubility depends on the size of the element, smaller the element faster it dissolves. The group 15th has Nitrogen, Phosphorus, Arsenic, Antimony, Bismuth whose atomic mass increses from 14.01 to 208.98

https://www.youtube.com/watch?v=DghzZcSveh8