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Considering some of its uses, you can guess that calcium hydroxide is not going to "eat flesh" the way that Sodium Hydroxide is known to. Calcium hydroxide is the depilatory agent in Nair. It is used as a lye substitute in no-lye hair relaxers. It is sometimes used as a calcium supplement fortified baby formula. It is used in home food preservation in the making of pickles.

With that said, it still is not too friendly to your skin. Contact with pure Ca(OH)2 or very concentrated solutions of it can cause chemical burns or blistering - the longer the exposure, the worse the effect. Chronic exposure will cause persistent skin irritation and nasty rashes. Breathing in the dust can cause lung problems and chemical bronchitis as it irritates all the membranes. If you get it in your eyes it will cause severe irritation, and can cause ulceration and even blindness. Swallowing it can cause severe pain, vomiting, and diarrhea. The tissues inside your digestive system are not as tough as your skin. The damage from swallowing it can cause death. The damage to the esophagus can cause ulceration and/or narrowing (which makes swallowing difficult). The ulceration can be bad enough to cause significant internal bleeding.

Compared to Sodium Hydroxide, it is much less damaging. Getting Ca(OH)2 on your skin will not normally cause much immediate damage and most of the bad effects can be averted by washing it off soon after exposure. NaOH, by contrast immediately starts causing significant damage when you come into direct contact with it. The extreme alkalinity of NaOH coupled with its strong hygroscopic nature means it will quickly dissolve into any skin or membrane moisture and begin reacting with the surrounding tissue. NaOH has a solubility in water of 1110 g/L (20 °C) while Ca(OH)2 only has a solubility of 0.173 g/100 mL (20 °C). Since Ca(OH)2 is only a weak base and not nearly as soluble as NaOH (which is a strong base) it doesn't have the "flesh eating" properties of Sodium Hydroxide.

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Organic meterials are carbon based like benzene, an aromatic 6 carbon member ring in resonace. Inorganic materials are non carbon based, like hydrochloric acid.

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cation is positively charged ion and it is formed when an atom in gaseous state loses one or more electrons

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Most common nitrites (NO2-) (like NaNO2, used as food preservative) are inorganic compounds. However, some common important organic nitrites include Methyl nitrite and Ethyl nitrite.

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Organic

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The chemical symbol of Antimony is Sb.

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Chocolate is a mixture, not a compound. It is composed mostly of organic compounds.

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Actually ethanol is an organic compound since it is composed of carbon, hydrogen, & oxygen.

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Dry ice (solid carbon dioxide) is inorganic.

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Steel contains iron, an inorganic material.

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No. Quartz is silicon dioxide (SiO2) and is a crystalline solid

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Inorganic farming is an agriculture production method which involves the use of manmade products such as fertilizers, pesticides, herbicides, etc.

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fluorescein can be used as indicator in the titration of silver and chlorided

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Organic compounds are organic in nature and consists of Carbon - Carbon covalent bond while inorganic compounds are mineral in nature and don't consist of carbon - carbon covalent bond. It's quite simple really: Organic chemistry is the chemistry of carbon compounds while inorganic chemistry is the chemistry of all the rest of the elements on the periodic table.

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nitrogen, phosphorus, antimony, bismuth

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Metallic or non-metallic elements can be magnetic.

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See the two Related Questions below for long lists of both inorganic and organic compounds.

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An inorganic molecule is a substance that does not contain carbon; they are not normally found in living things.

Actually, there are plenty of inorganic compounds in living things. But yes, as the name implies, inorganic chemistry is that chemistry that is not organic chemistry - the chemistry of carbon.

A compound that contains no carbon.

EDIT: Note that cyanide (CN), carbon monoxide and dioxide (CO, CO2), Carbonate (CO3^2-) etc. all contain carbon, but are not considered organic molecules. They are classed as inorganic. When classifying organic compounds, look for the presence of a carbon-hydrogen bond (C-H) in addition to just the presence of carbon.

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An allotrope is a form of an element which has a distinctly different molecular structure to another form of the same element.

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Both. Some inorganic acids include: HCL (hydrochloric acid), H2SO4 (sulfuric acid), HNO3 (nitric acid). However there are quite a few acids that are organic too: acetic acid (CH3CO2H) - found in vinegar; formic acid (HCO2H); and acetylsalicylic acid (aspirin). The inorganic acids are stronger acids (i.e. have a lower pH) than organic acids.

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diamond, graphite, fullerene

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E Mohr salt 392/1

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A diatomic oxygen molecule.

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A chemical that has no carbon.