HARD
Earn 100

How do hygroscopic and deliquescent substances differ?

50% studentsanswered this correctly

Important Questions on Solutions

EASY
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
Which of the following is an example of a deliquescent substance?
MEDIUM
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
Which of the following is hygroscopic in nature?
MEDIUM
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
Define: Hygroscopy
HARD
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
Why are deliquescent substances not suitable for storing food?
MEDIUM
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
Which of the following is a hygroscopic substance?
MEDIUM
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
In what way hygroscopic substances differ from deliquescent substances.
HARD
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
Why is silica gel used in medicine bottles?
EASY
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
Give a suitable chemical term for
The process in which a substance absorbs moisture from the atmospheric air to become moist and ultimately dissolves in the absorbed water.
MEDIUM
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
Deliquescence is due to _____.
MEDIUM
Science>Chemistry>Solutions>Hygroscopy and Deliquescence

In which of the following substances can there be an increase in weight when they are exposed to air.

1. Sodium chloride

2. Iron

3. Concentrated sulphuric acid

4. Table salt

5. Sodium carbonate crystals

EASY
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
Which process is opposite to hygroscopicity?
MEDIUM
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
Which of these are hygroscopic substances?


 
EASY
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
When Silica gel is kept open, it absorbs moisture from the air, because it is hygroscopic in nature.
MEDIUM
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
What is the term for the release of water from a substance?
HARD
Science>Chemistry>Solutions>Hygroscopy and Deliquescence

Complete the following table:

Common name Chemical name Formula Acid, base or salt Efflorescent, hygroscopic or deliquescent substance.

Blue vitriol

Quick lime

Oil of vitriol

Washing soda

Solid caustic soda

        

 

MEDIUM
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
Classify the following substances into deliquescent, hygroscopic. Conc. Sulphuric acid, Copper sulphate pentahydrate, Silica gel, Calcium chloride and Gypsum salt.
MEDIUM
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
Deliquescence takes place because of the difference in (i)_____ of atmospheric (ii) _____and that of the deliquescent substance. The vapour pressure of atmospheric humidity is (iii) _____ than that of the deliquescent substance. The substances which take up water on exposure to the atmosphere, without forming a solution are known as (iv) _____substances.
MEDIUM
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
Silica gel packets used in bottles helps to absorb moisture from bottles.
MEDIUM
Science>Chemistry>Solutions>Hygroscopy and Deliquescence

In which of the following substances can there be an increase in weight when exposed to air?

1. Sodium chloride

2. Iron

3. Concentrated sulphuric acid

4. Sodium carbonate crystals

HARD
Science>Chemistry>Solutions>Hygroscopy and Deliquescence
Which of the following is a hygroscopic salt?