Advertisements
Advertisements
प्रश्न
Select the correct answer from the choice given below to complete the sentence
The matter is added or removed during a ____________ change.
विकल्प
chemical
physical
उत्तर
The matter is added or removed during a chemical change.
APPEARS IN
संबंधित प्रश्न
State whether the following is physical or chemical changes.
shaping a piece of glass —
Tick (√) the correct alternative from the choice given for the following statement.
An example of both physical and chemical change is
Fill in the blank
Heat is ________ by a gas during the process of condensation.
Give two examples of periodic changes.
Give the main differences between physical changes and chemical changes.
Give four difference between physical and chemical changes.
Give three reasons why melting of wax, is considered a physical change while burning of a candle, a chemical change.
Name the following.
A form of energy required for a chemical change.
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 |
Give an example of a physical change in which the color of the substance changes.
