gold ring does not turn black
Not naturally it can't turn black.
No, real gold does not turn black when you burn it. When heated, gold will retain its color and may become softer or deform, but it will not change color like other metals that oxidize when burned.
NO. Silver will tarnish and turn black, though. Silver will but Gold shouldn't wrong answer: Gold can turn dark grey/ black also (if you don't know / don't answer)
it is not gold, it could be gold plated or brass
Yes
They're fake?
There are various things that can do some damage to gold. For example, there is nitric acid, which will turn gold black.
Gold will typically turn black when mixed with a different type of alloy. Bleach and chlorine can turn yellow gold black if it comes in contact with the gold.
Gold nuggets can turn black due to a process called tarnishing, which is the result of a chemical reaction between the gold and sulfur or other compounds in the environment. This tarnishing can darken the surface of the gold nugget, but it does not affect the actual composition or value of the gold.
If you put gold in bleach and it doesn't turn black, it could indicate that the gold is not reacting with the bleach. The lack of reaction may be due to the purity of the gold or the composition of the bleach. It's important to note that safety precautions should always be followed when working with chemicals like bleach.
Besides being expensive, gold is a very soft metal, so it is mixed with harder metals to make it suitable for earrings (also gold coins, cuff links, tie clasps, rings, toe rings, navel rings, and just about everything else made from gold). Nickel is often used, and it turns black from exposure to the air, which is why an old nickel coin turns black. The gold itself should not turn black.