The litmus paper will turn red when it comes in contact with an acid.
I'll assume you are asking about test acid. The test acid in gold test kits is nitric acid diluted to various strengths for use on different karat gold varieties. Here are a few scenarios to answer your question.Let's say you have a 14K gold ring. If you drip 14K acid on it, nothing will happen. If you drip 18K acid (or stronger) on it, the spot where the acid contacted it will turn brown. On the other hand, if the acid bubbles green, the ring is not actually gold at all.
Citric acid is a weak acid, so it would turn a universal indicator to orange or red.
Universal indicator will turn red or pink in dilute hydrochloric acid.
Acid can't turn red litmus paperbur base canturn it blue .
The litmus paper will turn red when it comes in contact with an acid.
I'll assume you are asking about test acid. The test acid in gold test kits is nitric acid diluted to various strengths for use on different karat gold varieties. Here are a few scenarios to answer your question.Let's say you have a 14K gold ring. If you drip 14K acid on it, nothing will happen. If you drip 18K acid (or stronger) on it, the spot where the acid contacted it will turn brown. On the other hand, if the acid bubbles green, the ring is not actually gold at all.
red
brown
Citric acid is a weak acid, so it would turn a universal indicator to orange or red.
No colour
Universal indicator will turn red or pink in dilute hydrochloric acid.
If you talk about gold fish colour then it is a common sense that it is naturally gold.
In acid solution, blue colour of litmus is changed into red. In basic sol litmus change to blue.
Red!
red
Acid can't turn red litmus paperbur base canturn it blue .