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Which oxide is used as food preservative?
Only the sulphur dioxide is largely used (code E220 in EU).
What happen ton sulphar when slightly heated in test tube by a Bunsen burner?
When sulphur is heated in the test tube in the absence of air the sulphur will break down and form a red-brown liquid. If oxygen comes into play sulphur dioxide is produced, however you should not that sulphur dioxide is a highly toxic gas and should only be produced in small amounts under a fume hood.
Is potassium chloride oxidising or reducing?
Potassium chloride is only a salt.
What happens to the sulphur particles in order for them to become sulphur dioxide particles?
well sulfur dioxide is a covalent compound so the sulfur atoms and the oxygen atoms share valence electrons. This is because all three atoms must try to have an octet, and with only 18 total valence electrons this must be done through sharing. So to become sulfur dioxide, the valence electrons on the oxygen atoms must be shared with the valence electrons on the sulfur atom.
What does sulfur dioxide cause?
Sulphur dioxide causes acid rain which corrodes limestone buildings and statues. Specifically photochemical reactions with sunlight on dust particles in the atmosphere converts sulphur dioxide (SO2) to sulphur trioxide (SO3), then when sulphur trioxide dissolves in the water (H2O) droplets in clouds it becomes sulphuric acid (H2SO4) a very strong highly corrosive acid. When rain falls from these sulphuric acid clouds as sulphuric acid rain it not only corrodes limestone and marble objects but also corrodes exposed unpainted metal surfaces and kills acid sensitive vegetation. In rare extreme cases the sulphuric acid may be concentrated enough in the rain to cause chemical burns on skin.
Why is sulfur-dioxide reducing while tellurium-dioxide is oxidising agent?
S+O2->SO2 Oxidation no. of sulphur changes from 0 to +4. Due to presence of d-orbitals(vacant) sulphur can extend its covalency & show oxidation states till +6, which is stable in sulphur (eg: SF6). Hence it acts as a reducing agent. Te+O2->TeO2 Oxidation no. of Te changes from 0 to +4. Unlike sulphur Te cannot show +6 oxidation state as it is highly unstable due to inert pair effect. Therefore there can only be a decrease in it oxidation state (it can decrease to -2, +2). Hence it acts as an oxidising agent.
Why does burning hydrocarbons produce sulphur dioxide?
Sulfur dioxide is produced only if the hydrocarbons are contaminated with sulfur compounds.
How sulfur dioxide is prepared in laboratory give only reation?
SULPHUR+2OXYGEN----------HEAT------>SULPHURDIOXIDE
Which oxide is used as food preservative?
Only the sulphur dioxide is largely used (code E220 in EU).
What happen ton sulphar when slightly heated in test tube by a Bunsen burner?
When sulphur is heated in the test tube in the absence of air the sulphur will break down and form a red-brown liquid. If oxygen comes into play sulphur dioxide is produced, however you should not that sulphur dioxide is a highly toxic gas and should only be produced in small amounts under a fume hood.
Is Santorini volcano dormant or extinct?
The volcano is an active one; now (I visited the island in September 2010) only some fumaroles with sulphur, carbon dioxide, water vapour.
What gases are produced by burning fuels?
They include: carbon dioxide, water vapour, sulfur dioxide and carbon monoxide. The carbon oxides and water vapour are the primary products. If combustion is complete the CO is converted to CO2, which is less poisonous. Sulphur Dioxide is produced only if the fuel contains sulphur or sulphur compounds in the first place, but this does include coal and oil. Petroleum -based fuels may also produce nitrous oxide under certain circumstances, including in vehicle engines.
Is it necessary that an oxidising agent should contain oxygen?
No. An oxidizing agent only needs to be able to increase the oxidation state of an element in another substance, which is a matter of electron transfer rather than oxygen. The halogens, especially fluorine, are strong oxidizing agents that do not contain oxygen.
Why is sulfur dioxide found in exhaust gas?
Exhausts can also contain Sulphur Dioxide (SO2) from impurities in the fuel, but only 3% of the total emissions of this substance come from transport, the rest mainly from industry and power generation.
Is potassium chloride oxidising or reducing?
Potassium chloride is only a salt.
Is the volcano Santorini dormant?
The volcano is an active one; now (I visited the island in September 2010) only some fumaroles with sulphur, carbon dioxide, water vapour.
Is sulfuric a gas?
sulfur is an element that can be found on the periotic table of the elements it can be found in many states including gas.
