D. Answer the following questions in brief.
1.
What are mineral acids?
2. Give two examples each of mineral acids and organic acids.
3.
Name any two substances that can be used as indicators.
4.
Write the meaning of the term ‘neutralisation reaction?
5.
Give any two properties of salts.
6.
Classify the following salts as neutral, acidic or basic. Also, write their names.
(a) Na3PO4
Answers
Answer:
1. A mineral acid (or inorganic acid) is an acid derived from one or more inorganic compounds. All mineral acids form hydrogen ions and the conjugate base when dissolved in water.
2.(b) Organic acids: Citric acid, lactic acid;
Mineral acids: Hydrochloric acid, sulphuric acid.
3.A. Those substances which give different colour indifferent medium and thus indicate the presence of acid or base in a solution are called indicators.
B. Natural indicators : Turmeric, beetroot.
Synthetic indicators : Phenolphthalein and Methyl orange
4.In chemistry, neutralization or neutralisation (see spelling differences) is a chemical reaction in which acid and a base react quantitatively with each other. In a reaction in water, neutralization results in there being no excess of hydrogen or hydroxide ions present in the solution. The pH of the neutralized solution depends on the acid strength of the reactants.
5.Salt is made up of Sodium and Chlorine.
Salt has negatively charged ions (OH-) and positively charged ions (H+).
Due to their oppositely charged ions, the ions are attracted towards each other with an electrostatic force of attraction which is called an ionic bond.
Answer:
hey mate, ur ans is...,,,,
Explanation:
1. mineral acid is an acid derived frm one or more inorganic compounds.
2. mineral acids - sulphuric acid, nitric acid
organic acid - carboxylic acid.
3. litmus paper nd turmuric.
5. i)) salts r ionic in nature. due to presence of ions.
ii)) they r britle , hard nd crystiline solids.
HOPE IT HLPS U MATE, ,,,,,