EASY
Earn 100

Which compound of calcium is used for disinfecting drinking water supply? (Bleaching powder / Soda ash)

100% studentsanswered this correctly

Important Questions on Acids, Bases and Salts

MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts

State:

The difference between number of molecules in Gypsum and in Plaster of Paris.

MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts
Which of the following is used to purify drinking water?
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts

Answer the following:

Write the formula of a salt that contains water of crystsllisation.

HARD
Science>Chemistry>Acids, Bases and Salts>Salts

What is gypsum? What happens when gypsum is heated to 373K?

MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts
Baking soda is a mixture of:
HARD
Science>Chemistry>Acids, Bases and Salts>Salts
What is the chemical formula of baking soda? Give chemical equation used in the preparation.
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts

Answer the following:

A calcium compound having odour of chlorine is used to remove yellowish-white clothes in laundries. Name the compound.

EASY
Science>Chemistry>Acids, Bases and Salts>Salts
Why should we store Plaster of Paris in a moisture-proof container? Write its equation.
HARD
Science>Chemistry>Acids, Bases and Salts>Salts
How is washing soda prepared from sodium carbonate? Give its chemical equation. State the type of this salt. Name the type of hardness of water which can be removed by it?
EASY
Science>Chemistry>Acids, Bases and Salts>Salts
Saponification of coconut oil yields glycerol and
EASY
Science>Chemistry>Acids, Bases and Salts>Salts
Write the chemical formula of bleaching powder? 
HARD
Science>Chemistry>Acids, Bases and Salts>Salts
How is sodium hydroxide manufactured in industries? Name the process. In this process, a gas X is formed as a by-product. This gas reacts with lime water to give a compound Y, which is used as a bleaching agent in the chemical industry. Identify X and Y and write the chemical equation of the reaction involved.
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts

Write the chemical formulae of the following:

(a) Common salt  (b) Slaked lime (c) Bleaching powder.

MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts
Baking soda is used to make cakes light and fluffy. Give any two other uses of baking soda.
EASY
Science>Chemistry>Acids, Bases and Salts>Salts
Write the chemical name, formula and two uses of bleaching powder.
EASY
Science>Chemistry>Acids, Bases and Salts>Salts

Write the chemical formula of the following:

  1. Bleaching powder
  2. Plaster of Paris
EASY
Science>Chemistry>Acids, Bases and Salts>Salts
Write two important uses of washing soda and baking soda.
EASY
Science>Chemistry>Acids, Bases and Salts>Salts
Write any four uses of washing soda.
EASY
Science>Chemistry>Acids, Bases and Salts>Salts
The chemical formula for plaster of Paris is:
EASY
Science>Chemistry>Acids, Bases and Salts>Salts
The pH of a salt used to make tasty and crispy pakoras is 14. Identify the salt and write a chemical equation for its formation. List its two uses.