EASY
Earn 100

Identify the hygroscopic salt in the following compounds:

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Important Questions on Acids, Bases and Salts

MEDIUM
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State:

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

MEDIUM
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If excess of CO2 is passed through the suspension of a compound ‘X’ in water, a compound ‘Y’ is formed. Substances ‘X’ and ‘Y’ dissolve in H2SO4 giving white compound ‘Z’ which is insoluble in water. Identify the compounds ‘X’, ‘Y’ and ‘Z’.
MEDIUM
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Answer the following:

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

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

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

MEDIUM
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Aluminium oxide is called amphoteric oxide. Give reason. 
HARD
Science>Chemistry>Acids, Bases and Salts>Salts
What is the chemical formula of baking soda? Give chemical equation used in the preparation.
EASY
Science>Chemistry>Acids, Bases and Salts>Salts
The pH of 0.1 M aqueous solution of NaCl, CH3COONa and NH4Cl will follow the order:
EASY
Science>Chemistry>Acids, Bases and Salts>Salts
Write the chemical name, formula and two uses of bleaching powder.
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts

Answer the following:

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

MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts
A light greenish salt is soluble in water. On passing H2S gas into the solution, a black precipitate is obtained which dissolves readily in HCI. The metal ion present is 
EASY
Science>Chemistry>Acids, Bases and Salts>Salts
Write the chemical formula of bleaching powder? 
HARD
Science>Chemistry>Acids, Bases and Salts>Salts

State one relevant reason for the following:

  • Hydrated copper sulphate crystals turn white on heating.
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
Why should we store Plaster of Paris in a moisture-proof container? Write its equation.
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
Complex salt is
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts
What do you mean by the family of salts?
HARD
Science>Chemistry>Acids, Bases and Salts>Salts

State one relevant observation for the following reactions:

  • Addition of excess ammonium hydroxide into copper sulphate solution.