Q1
What is salt in acids, bases and, salts?
In chemistry, a salt is a substance obtained by the reaction of an acid and a base. Salts are composed of positive ions (cations) of bases and negative ions (anions) of acids. The reaction of acid and base is called the neutralization reaction.
Q2
Is NH4Cl a basic salt?
Ammonium chloride (chemical formula NH4Cl) is an acid salt because it is a salt of a strong acid (i.e. hydrochloric acid) and a weak base (i.e. ammonium hydroxide).
Q3
What are the 2 types of acids?
There are two basic types of acids organic and inorganic acids. Inorganic acids are sometimes referred to as mineral acids. As a group, organic acids are generally not as strong as inorganic acids. The main difference between the two is the presence of carbon in the compound; inorganic acids do not contain carbon.
Inorganic acids – Inorganic acids are often termed mineral acids. The anhydrous form may be gaseous or solid. An inorganic anhydride is an oxide of metalloid which can combine with water to form an inorganic acid.
Example:
Sulphuric acid (H2SO4)
Phosphoric acid (H3PO4)
Nitric acid (HNO3)
Organic acids – Organic acids are corrosive and toxic. Corrosivity is a form of toxicity to the tissues that the acid contacts. Organic acids and their derivatives cover a wide range of substances. They are used in nearly every type of chemical manufacture. Because of the variety in the chemical structure of the members of the organic acid group.
Example:
Acetic acid
Citric acid
Formic acid
Q4
Is salt basic or acidic?
The salt is basic only when it contains a weak acid conjugate base. For example, sodium chloride contains chloride (Cl-), the conjugate base of HCl.
Q5
What happens when salt reacts with HCl?
When an acid reacts with metal, a salt and hydrogen are produced:
acid + metal → salt + hydrogen
The salt that is produced depends upon which acid and which metal react.
Sodium metal reacts with hydrochloric acid which produces hydrogen gas and sodium chloride.
2Na(s)+2HCl(aq)→2NaCl(aq)+H2(g)
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