HARD
9th ICSE
IMPORTANT
Earn 100
Normally, the solubility of a crystalline solid increases with temperature. Does it increase uniformly in every case? Name a substance whose solubility:
increases rapidly with temperature.
Important Questions on Water
HARD
9th ICSE
IMPORTANT
increases gradually with temperature.
HARD
9th ICSE
IMPORTANT
increases slightly with temperature
HARD
9th ICSE
IMPORTANT
actually decreases with a rise in temperature.
MEDIUM
9th ICSE
IMPORTANT
MEDIUM
9th ICSE
IMPORTANT
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
MEDIUM
9th ICSE
IMPORTANT
In which of the following substances can there be: decrease in weight
1. Sodium chloride
2. Iron
3. Concentrated sulphuric acid
4. Table salt
5. Sodium carbonate crystals
MEDIUM
9th ICSE
IMPORTANT
In which of the following substances can there be: no change in weight when exposed to air?
1. Sodium chloride
2. Iron
3. Concentrated sulphuric acid
4. Table salt
5. Sodium carbonate crystals
MEDIUM
9th ICSE
IMPORTANT
