Fluorine. Fluorine must be excluded from this discussion because its oxidizing abilities are too strong. Fluorine oxidizes water to oxygen, as in the equation below, and so it is impossible to carry out reactions with it in aqueous solution.

Which halogen oxidizes water at room temperature but does not undergo?

Answer: Since, fluorine is the strongest oxidising agent so, it does not have any positive oxidation state. Hence, F₂ does not undergo disproportionation in water.

Which of the following halogen can oxidize water?

Fluorine oxidises water to oxygen whereas chlorine and bromine react with water to form corresponding hydrohalic and hypohalous acids.

Which halogen gives disproportionation reaction with water?

Selina - Chemistry - Class 7

In a disproportionation reaction, the reactant takes part in redox reaxtion (both oxidation and reduction occurs simultaneously). So, Cl is reduced to Cl⁻ in HCl. Here, Cl is oxidised to HClO.

Which of the following oxidises water to oxygen Exothermally?

Fluorine decomposes water very vigorously even at low temperature and in dark forming mixture of O2 and O3 (ozonised oxygen).

Why is Oxygen (O2) a gas at room temperature while Water (H2O) is a liquid?

16 related questions found

Which halogen liberates oxygen on reacting with water?

The halogens are all oxidizing elements with fluorine and chlorine being the most electronegative elements in the group. Hence, the most oxidizing and as a result, both fluorine and chlorine are able to oxidize (react) with water to greater extents forming different products.

Which halogen will produce o2 and o3 is passed through water and why?

The p-Block Elements. Which halogen will produce O₂ and O₃, on passing through water? Fluorine reacts violently with water forming hydrogen fluoride, and liberates oxygen which is highly charged with ozone.

Which halogen do not react with water?

From a standard reduction potential table, it is determined that iodine and bromine cannot oxidize water to oxygen because they have smaller reduction potentials than oxygen. Thus, iodine and bromine do not react with water.

Which halogen is readily reduced?

fluorine is most easily reduced. Here easily Reduced means the elements which can undergoe reduction(gain of electron) easily. So, fluorine being the most electronegative element is reduced most easily.

Which of the following is disproportionate in water?

(2) a & b P4 does disproportionate in water.

Can fluorine be oxidized?

Fluorine is such a powerful oxidizing agent that solution reactions are unfeasible. Chlorine has the ability to take electrons from both bromide ions and iodide ions. ... Similarly, bromine is a more powerful oxidizing agent than iodine.

Which halogen is strongest oxidising agent?

We conclude that fluorine is the most powerful oxidant among the halogens.

Are halogens oxidizing agents?

The halogens can act as oxidising agents by gaining electrons to form halide ions. The oxidising ability decreases down the group with fluorine being the strongest oxidising agent.

Which halogen does not exhibit a positive oxidation state?

Due to this reason, the highest electronegative elements fluorine does not exhibit a positive oxidation state. So, the correct answer is D.

Which of the following halogen does not undergo disproportionation?

Fluorine is the most electronegative element and a strong oxidizing agent. It does not show positive oxidation state and does not undergo disproportionation reaction.

Which of the following is radioactive halogen?

Astatine is the radioactive halogen present in nature.

Which halogen is solid at room temperature?

The halogen group is quite diverse. It includes elements that occur in three different states of matter at room temperature. Fluorine and chlorine are gases, bromine is a liquid, and iodine and astatine are solids.

Which halogen with water is endothermic?

Now in the series of halogen on going down the group the energy of dissociation becomes less negative and hence the reaction of iodine with water is an endothermic reaction.

Which halogen is oxidized by nitric acid?

Out of the halogens, nitric acid can oxidise only iodine. It oxidises iodine to give an acid which is used to standardise weak and strong bases during quantitative analysis.

How do halogen react with water?

Halogens react to a small extent with water, forming acidic solutions with bleaching properties. They also undergo redox reactions with metal halides in solution, displacing less reactive halogens from their compounds.

Is chloride a halogen?

Group 7A (or VIIA) of the periodic table are the halogens: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). ... The halogens are extremely reactive (especially fluorine), and are not found naturally in their elemental forms.

Which halogen reacts most rapidly with water?

Fluorine is the most reactive element of all in Group 7. You can see the trend in reactivity if you react the halogens with iron wool. Reacts with almost anything instantly. Very few scientists handle fluorine because it is so dangerous.

Which of the following produces ozonized oxygen when reacts with water?

Ozone condenses as its condensation temperature is 112.4°C. The liquid ozone thus obtained may contain some dissolved oxygen. This liquid is fractionally distilled to get pure ozone. (i) Fluorine reacts with water at a very low temperature when mixture of ozonised oxygen is formed.

Which of the following compounds is obtained by passing O3 in HG?

When ozone is passed through mercury, it loses its meniscus and sticks to the glass due to the formation of mercurous oxide. This is called tailing of mercury.