Advertisements
Advertisements
प्रश्न
Write the name and formula of one salt which contains:
Two molecules of water of crystallisation.
Advertisements
उत्तर
Name: Gypsum
Formula: CaSO4.2H2O
APPEARS IN
संबंधित प्रश्न
Identify the substance underlined, in the following case
A solid formed by reaction of two gases, one of which is acidic and the other basic in nature
From the list of the following salts choose the salt that most appropriately fits the
description is given in the following:
[AgCl, MgCl2, NaHSO4, PbCO3, ZnCO3, KNO3, Ca(NO3)2]
On heating this salt, a brown colored gas is evolved.
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.
Write a balanced chemical equation for the following:
Action of dilute hydrochloric acid on magnesium sulphite.
Give any two uses of common salt (sodium chloride).
Name the salt which is used as a preservative in pickles, and in curing meat and fish.
Explain how anhydrous copper sulphate can be used to detect the presence of moisture (water) in a liquid.
Give the names and formulae of any two salts. Also name the acids and bases from which these salts may be obtained.
The salt whose aqueous solution will have no effect on either red litmus or blue litmus is ______.
Give one example of a salt which gives an aqueous solution having:
pH less than 7
Consider the following salts:
Na2CO3, NaCl, NH4Cl, CH3COONa, K2SO4, (NH)2SO4
Which of these salts will give:
- acidic solutions?
- neutral solutions?
- basic solutions (or alkaline solutions)?
How many molecules of water of crystallisation (per formula unit) are present in:
Copper sulphate crystals
Name a salts whose solubility increases with temperature.
Name a salt whose solubility decreases with temperature.
Name the particles present in :
Strong electrolyte
State what would you observe when :
The salt ferric chloride is exposed to the atmosphere.
Name a colourless gas which bleaches.
Copy and complete the following table which refers to the action of heat on some carbonates:
| Carbonate | Colour of residue on cooling |
| Zinc Carbonate | |
| Lead carbonate | |
| Copper carbonate |
Many salts absorb water from the atmosphere. This property is called:
What are hygroscopic substances?
