Among Group 16 elements, which one does NOT show -2 oxidation state?
- O
- Se
- Te
- Po
The Correct Option is D
Solution and Explanation
Group 16 elements, also known as the chalcogens, generally exhibit oxidation states of -2, +2, +4, and +6. Oxygen (\(<\text{O}>\)) is the most electronegative element in this group and readily forms the -2 oxidation state. As you move down the group, the ability of the elements to form the -2 oxidation state decreases due to increasing atomic size and decreasing electronegativity.
Among the options given:
- Oxygen (\(\text{O}\)): Commonly shows a -2 oxidation state.
- Selenium (\(\text{Se}\)): Can show a -2 oxidation state.
- Tellurium (\(\text{Te}\)): Also capable of a -2 oxidation state.
- Polonium (\(\text{Po}\)): Generally does not form a -2 oxidation state due to its metallic nature and instability.
The correct answer is that Polonium (\(\text{Po}\)) does not typically show a -2 oxidation state due to its position at the bottom of Group 16 and its tendency to exhibit metallic properties rather than non-metallic ones.
Top Questions on Group 16 Elements
- Given below are two statements :
Statement I: The boiling point of hydrides of Group 16 elements follow the order
H2O > H2Te > H2Se > H2S.
Statement II: On the basis of molecular mass, H2O is expected to have lower boiling point than the other members of the group but due to the presence of extensive H-bonding in H2O, it has higher boiling point.
In the light of the above statements, choose the correct answer from the options given below :- NEET (UG) - 2024
- Chemistry
- Group 16 Elements
- From the given list, the number of compounds with +4 oxidation state of Sulphur_____.
\(SO_3, H_2SO_3, SOCl_2, SF_4, BaSO_4, H_2S_2O_7\).- JEE Main - 2024
- Chemistry
- Group 16 Elements
- Why does oxygen show anomalous behavior ?
- JEE Main - 2024
- Chemistry
- Group 16 Elements
- Choose the correct statements from the following:
A. All group 16 elements form oxides of general formula \( EO_2 \) and \( EO_3 \) where \( E = S, Se, Te, \) and Po. Both the types of oxides are acidic in nature.
B. TeO\(_2\) is an oxidising agent while SO\(_2\) is reducing in nature.
C. The reducing property decreases from H\(_2\)S to H\(_2\)Te down the group.
D. The ozone molecule contains five lone pairs of electrons.
Choose the correct answer from the options given below:- JEE Main - 2024
- Chemistry
- Group 16 Elements
- Cerium (IV) has a noble gas configuration. Which of the following is correct statement about it?
- JEE Main - 2022
- Chemistry
- Group 16 Elements
Questions Asked in NEET exam
- A body weighs 48 N on the surface of the earth. The gravitational force experienced by the body due to the earth at a height equal to one-third the radius of the earth from its surface is:
- NEET (UG) - 2025
- Gravitational potential energy
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :
- NEET (UG) - 2025
- Pendulums
- An oxygen cylinder of volume 30 litre has 18.20 moles of oxygen. After some oxygen is withdrawn from the cylinder, its gauge pressure drops to 11 atmospheric pressure at temperature \(27^\circ\)C. The mass of the oxygen withdrawn from the cylinder is nearly equal to: [Given, \(R = \frac{100}{12} \text{ J mol}^{-1} \text{K}^{-1}\), and molecular mass of \(O_2 = 32 \text{ g/mol}\), 1 atm pressure = \(1.01 \times 10^5 \text{ N/m}^2\)]
- NEET (UG) - 2025
- Ideal-gas equation and absolute temperature
- A uniform rod of mass 20 kg and length 5 m leans against a smooth vertical wall making an angle of \(60^\circ\) with it. The other end rests on a rough horizontal floor. The friction force that the floor exerts on the rod is (take \(g = 10\) m/s\(^2\)):
- NEET (UG) - 2025
- Common forces in mechanics
- A wire of resistance \(R\) is cut into 8 equal pieces. From these pieces, two equivalent resistances are made by adding four of these together in parallel. Then these two are added in series. The net effective resistance of the combination is:
- NEET (UG) - 2025
- Resistance