Why does acidic nature of hydrides increases down the group?

On moving down the group thermal stability decreases due to increase in size of central atom (M) by which the bond dissociation energy between central atom and hydrogen (M-H) decreases and thus thermal stability decreases. Hence acidic character increases down the group.

Why does reducing property of hydrides increase down the group?

This is due to a decrease in their bond dissociation enthalpy. Reducing character is directly related to the ease of losing hydrogen. Stability decreases down the group as the bond dissociation energy decreases. Hence, the bond dissociation energy decreases down the group due to the increase in the central atom size.

Why does an acidic character increase from left to right?

– Due to the increase in the electronegative character of the elements, the acidic character of the elements also increases as we move from left to right in a period because the molecule gets more polar and hydrogen gets a larger partial positive charge.

Why acidic nature increases down the group 16?

Acidic nature: Due to the decreasing bond dissociation enthalpy, acidic character of group 16 elements increases down the group. H2O < H2S < H2Se < H2Te Reducing character: The reducing character also decreases down the group due to the decreasing bond dissociation enthalpy.

Are hydrides acidic?

A hydride is a compound formed between hydrogen and any other element. Metal hydrides are usually basic in water while non-metal hydrides are often acidic in water.

Why does reducing character of hydrides increase down the group in Group 15?

The reducing character increases down the group because the bond strength of the E−H bond decreases. 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 acidic character decreases down the group in Group 15?

As we know that electronegativity is the property of the element to attract electron pairs. Hence, the acidic character of the oxides “decreases down the group” because the electronegativity decreases down the group.

Why does acidity increase with electronegativity?

Acid strength increases with : 1. increasing electronegativity of the central atom: The more electronegative the central atom, the more electron drift occurs, polarizing the O-H bond which makes it easier for the molecule to dissociate. 2.

Why basic nature increases down the group?

Basically Basicity or basic character is dependent on how lately the electron in lost . so going down the group the force of attraction on electron is reduced because of which electron is lost easily and hence it’s Basicity is increased.

How does acid strength of hydrides of Group 16 vary down the group?

Owing to increase in the size of central atom, acidity of hydrides increases on moving down the group, The distance between the central atom and hydrogen increases as we move from ‘O’ to Te’, which favors the release of hydrogen as proton. Hydrides of group 16 are weakly acidic.

How does acid strength of hydrides of group 16 vary down the group?

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