Question

IV. Identify the incorrect word and rewrite the statements with no correct word :-(2.5 Marks)
1) CNG is used as cooking gas in gas cylinders in kitchen.
2) The rate of evaporation decreases with the increase in temperature.
3) A physical change is permanent and irreversible.
4) Sugar solution is a heterogeneous mixture. 5) Noble gases show some properties of metals and some of non-metals.​

Answer 1

Answer:

1) LPG is used as cooking gas in gas cylinder in kitchen.

2) rate of evaporation increases with the increase in temperature.

3) a physical change is temporary and reversible.

4) sugar solution is a homogeneous mixture