Question

1.
A basic salt present in washing powders

2.
A weak acid present in vinegar

3.
An acid whose salts are called
sulphites
4.
A substance used to reduce
acidity in our stomach.
5.
An acid present in oranges and
lemons.​

Answer 1

Answer:

1) sodium carbonate

2)Acetic acid

3)sulfurous acid

4)antacid

5)citric acid

Answer 2

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Here the names of the required acids & bases:

1. A basic salt present in washing powders

• Sodium carbonate (Na2CO3)

The salt is formed by the neutralisation of strong base NaOH and weak acid H2CO3. It is obtained by heating Sodium hydrogen carbonate.

2. A weak acid present in vinegar

• Acetic acid

Usually found in our kitchens, also known as Sirka in Hindi. It is a weak base and used as an taste enhancer and preservative.

3. An acid whose salts are called sulphites

• Sulphurous acid

Also known as king of acids, it is one of the strongest avid and Highly corrosive in nature. It can be found in our laboratories and used in car batteries.

4. A substance used to reduce acidity in our stomach.

• Antacid

They are mild bases which neutralises the excess of HCl produced in the stomach. Two of them are Sodium bicarbonate and Magnesium hydroxide. Magnesium hydroxide is also known as Milk of Magnesia which comes in liquid or in tablet forms.

5. An acid present in oranges and lemons.

• Citric acid

Oranges and Lemons are rich in Vitamin C due to the presence of citric acid. It is a mild acid and edible also.