What is the order of thermal stability of hydrides of Group 16 elements?

The thermal stability of the hydrides of group 16 elements decreases down the group, i.e., H2O > H2S > H2Se > H2Te > H2Po.

What is the order of thermal stability of hydrides?

Thermal stability of hydrides of first group elements follows the order- A] $LiH > NaH > KH > RbH$ B] $LiH > KH > NaH > RbH$ C] $LiH > RbH > KH > NaH$

Why does the thermal stability of Group 16 decreases down the group?

Thermal stability: Thermal stability of group 16 elements decreases down the group. H2O > H2S > H2Se> H2Te > H2Po This is because the H-E bond length increases down the group, hence the bond dissociation enthalpy decreases down the group.

What is the order of thermal stability of group 15?

Thus the thermal stability decreases down the group. Reducing power increases with the decrease in the stability of the hydride. The hydrides of group 15 are strong reducing agents. Bismuth is the strongest reducing agent among all the other hydrides.

Which hydride is most thermally stable in Group 16?

(iii) H2O is most thermally stable, because of high bond dissociation enthalpy.

What is thermal stability in P block elements?

The p-Block Elements. Write the order of thermal stability of the hydrides of Group 16 elements. The thermal stability of hydrides decreases on moving down the group. This is due to a decrease in the bond dissociation enthalpy of hydrides on moving down the group.

Which is the correct order of thermal stability?

KF>KCl>KBr>KI.

Which of the following is the most correct order of thermal stability of hydrides?

The hydrogen halides are generally gaseous in state which reacts with water to give the acid and these acids are termed as hydrohalic acids. Thus, the correct order of thermal stability of hydrogen halides is HF>HCl>HBr>HI.

Why thermal stability increases down the group?

The thermal stability increases as you go down Group 2. This is because the Group 2 ion has lower charge density, and thus distorts the carbonate ion less. The less distorted the carbonate ion is, the more stable it is, and so a higher temperature is required to decompose the carbonate. ions in solution.

Which is the strongest reducing agent in Group 16?

Therefore, H2Te is the strongest reducing agent amongst all the hydrides of Group 16 elements.

Which is the most stable hydride?

Therefore, NH3 is the most stable hydride.

Does thermal stability increase down group?

Thermal stability increases down the group because the size of the cation (positive ion) increases, so the lattice energy of the carbonate decreases, but the lattice energy of the oxide decreases faster.

Why does thermal stability of Group 16 hydrides decrease?

The thermal stability of hydrides of group 16 elements decreases down the group. This is because down the group, size of the element (M) increases, M-H bond length increases and thus, stability of M-H bond decreases so that it can be broken down easily. Hence, we have order of thermal stability as H 2 O > H 2 S > H 2 Se > H 2 Te > H 2 PQ

Which is the correct order of Group 16 hydrides?

The correct order of thermal stability of the hydrides of group 16 elements isa)H2Po> H2Fe> H2Se> H2S > H2Ob)H2O H2Se>H2Te>H2Poc)H2O=H2S=H2Se-H2Te=H2Pod)H2O>H2S>H2SE>H2Te>H2PoCorrect answer is option ‘D’. Can you explain this answer? | EduRev Class 12 Question

How are hydrides arranged in a decreasing order?

Arrange the hydrides of group 16 in the decreasing order of their thermal stability. Is the order same or different for their reducing character? The stability of hydrides decreases moving down the group this is because of the decrease in the bond dissociation enthalpy of hydrides on moving down the group.

This discussion on The correct order of thermal stability of the hydrides of group 16 elements isa)H2Po> H2Fe> H2Se> H2S > H2Ob)H2O H2Se>H2Te>H2Poc)H2O=H2S=H2Se-H2Te=H2Pod)H2O>H2S>H2SE>H2Te>H2PoCorrect answer is option ‘D’. Can you explain this answer? is done on EduRev Study Group by Class 12 Students.

What is the order of thermal stability of hydrides of Group 16 elements? The thermal stability of the hydrides of group 16 elements decreases down the group, i.e., H2O > H2S > H2Se > H2Te > H2Po. What is the order of thermal stability of hydrides? Thermal stability of hydrides of first group elements follows…