Chemical Reactions and Equations — Science STD 10 — Question

A substance X which is used as an antacid reacts with dilute hydrochloric acid to produce a gas Y which is used in one type of fire-extinguisher. Name the substance X and gas Y. Write a balanced equation for the chemical reaction which takes place.

Why are aqueous solutions of ionic compounds able to conduct electricity?

What will be the action of the following substances on litmus paper? Dry HCl gas, Moistened NH₃ gas, Lemon juice, Carbonated soft drink, Curd, Soap solution.

A student is studying the properties of acetic acid in his school laboratory. List two physical and two chemical properties which he must observe and note in his record book.

Write the molecular and structural formula of a cyclic hydrocarbon whose molecule contains 8 atoms of carbon.

Write down the structures and names of two isomers of butane (C₄H₁₀).

Mention the essential material (chemicals) to prepare soap in the laboratory. Describe in brief the test of determining the nature (acidic/alkaline) of the reaction mixture of saponification reaction.

What happens when silver nitrate solution is added to sodium chloride solution?

1. Write the equation for the reaction which takes place.
2. Name the type of reaction involved.

Give any two differences between soaps and detergents.

Describe how sodium hydrogencarbonate (baking soda) is produced on a large scale. Write equation of the reaction involved.