Advertisements
Advertisements
Question
Select the chemical changes from the following list of changes
Vaporisation of water into water vapour.
Solution
Change of water into water vapours is a PHYSICAL change as no change in composition, only state changes, is reversible change on cooling vapour water is formed.
APPEARS IN
RELATED QUESTIONS
Fill in the blank.
Heat is .................... by a gas during the process of condensation.
Dissolving salt in water is a reversible change.
State whether the following is physical or chemical changes.
heating a mixture of iron filings and sulphur—
Write true or false
Melting of ice is a physical change.
Tick (√) the correct alternative from the choice given for the following statement
Which one of the following is volatile in nature ?
Select the chemical changes from the following list of changes
Drying of a fruit
Select the chemical changes from the following list of changes
The carbon cycle.
Sublimation of Iodine is a ______.
Ice, water and water vapour look different and display different ______ properties but they are ______ the same.
Match the items of Column I with the items of Column II
Column 1 | Column II | ||
(a) | Large crystals | (i) | Turns lime water into milky |
(b) | Depositing a layer of zinc on iron | (ii) | Physical change |
(c) | Souring of milk | (iii) | Rust |
(d) | Carbon dioxide | (iv) | Sugar candy (Mishri) |
(e) | Iron oxide | (v) | Chemical change |
(f) | Dissolving common salt in water | (vi) | Galvanisation |