Question

what are acid please please please​

Answer 1

Answer:

acids have H3O ions and sour to taste

Answer 2

$\red{Acids :}$

• Acids acids are those chemical substances which have a sour taste and change the colour of blue Litmus to Red

• Some common fruits such as a unripe mango, lemon ,orange, tamarind ,etc. are sour in taste.

• This suggests that these fruits contain acids.

• Some commonly used acids are hydrochloric acid (HCL), sulphuric acid , Nitric acid , etc.

• Some naturally occurring acids are:

1. Vinegar - Acetic Acid
2. Orange and lemon - Citric acid
3. Tamarind - Tartaric acid
4. Tomato - Oxalic acid
5. Curd - lactic acid

• Indicators - They are the substance that change their colour or odour when added into an acid or an alkaline solution.

• Indicators can be classified in the following ways:

1. Natural indicators
2. Synthetic indicators
3. Olfactory indicators and
4. Universal indicators.