18.(a) WHAT HAPPENS WHEN BEE
STING US?WHAT WE CAN APPLY TO
NEUTRALISE IT?(2) (b) WHY P.O.P IS
STORED IN MOISTURE PROOF
CONTAINER?(2) (c) WHAT HAPPENS
WHEN ZINC METAL REACT WITH
SULPHURIC ACID?
Answers
Lakhmir Singh Solutions Class 10 Chemistry Chapter 2 Acids, Bases and Salts
On the basis of the chemical property of compounds, it has been divided into three groups
Acids, bases and salts where acids and bases combined to form salts. Acid-base chemistry plays an important role in chemistry because every chemical reaction can be classified as an acid-base reaction.
On defining acids and bases so many concepts came forward for the explanation of what acid is and what is a base. Mainly three concepts are there for acids and bases they are Lewis concept, Arrhenius concept and Bronsted-Lowry concept.
Acid-base chemistry is applicable both in a laboratory and as well as in biological level, that means acids are present in the human body also. This chapter comprises of an introduction to the fundamentals of acid-base chemistry, their reaction and uses.
Download PDF Of Lakhmir Singh Solutions For Class 10 Chemistry Chapter 2
A- The sting induces an acidic influx, which causes the burning sensation. So grab some baking soda or vinegar make a paste of it with water and apply it on to the wound for about half an hour, or you can apply some toothpaste, which also acts as an effective base to counter the acidic sting
B- Plaster of Paris (POP) should be stored in a moisture-proof container because Plaster of Paris, a powdery mass, absorbs water (moisture) to form a hard solid known as gypsum.
C-Zinc is more reactive than hydrogen and it displaces hydrogen from dilute acids. Zinc reacts with dilute sulphuric acid to form zinc sulphate and hydrogen gas is evolved
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