Which among the following are physical or chemical changes

Asked by admin @ 23/08/2021 in Science viewed by 380 People

Which among the following are physical or chemical change?

1. evaporation of petrol
2.burning of LPG gas.
3.heating of iron rod to red hot.
4.curdling of milk
5.sublimation of solid ammonium chloride.

Answered by admin @ 23/08/2021

1.physical
2.chemical
3.physical
4.chemical
5.physical

Which among the following is a physical change

Asked by admin @ 25/08/2021 in Science viewed by 304 persons

Which among the following is a physical change ? a. CuttingRipeningb. Burningd. CookingC.111. Which among the following is a physical change?

Classify the following as physical and chemical changes

Asked by admin @ 31/08/2021 in Science viewed by 392 persons

Classify the following as chemical or physical changes: • cutting of trees, • melting of butter in a pan, • rusting of almirah, • boiling of water to form steam, …

Classify the following as chemical or physical changes

Asked by admin @ 25/08/2021 in Science viewed by 331 persons

Classify the following as chemical or physical changes: • cutting of trees, • melting of butter in a pan, • rusting of almirah, • boiling of water to form steam, …

Which of the following is a chemical change

Asked by admin @ 24/08/2021 in Chemistry viewed by 311 persons

Which of the following is a chemical change? 1] Cutting of tree 2] Rusting of iron 3] Burning of candle 4] Water converting into steam

Burning of candle is both physical and chemical change

Asked by admin @ 17/08/2021 in Science viewed by 329 persons

How burning of candle is both physical and chemical change

Is burning a candle a chemical or physical change

Asked by admin @ 13/08/2021 in Chemistry viewed by 367 persons

Burning of candle is a chemical change whereas melting of candle is physical change. Why?

Which one of the following is a chemical change

Asked by admin @ 11/08/2021 in Chemistry viewed by 354 persons

which one of the following is a chemical change? Give reason. a) Burning of wax b) Melting of wax

Which of the following is not a chemical change

Asked by admin @ 10/08/2021 in Chemistry viewed by 387 persons

1. Which of the following is not a chemical change? a) Formation of curd b) ripening of banana c) corrosion of irond) melting of wax

Which of the following is not a physical change

Asked by admin @ 10/08/2021 in Chemistry viewed by 343 persons

Which of the following is not a physical change? (a) Boiling of water to give water vapour (b) Melting of ice to give water (c) Dissolution of salt in water …

Which one of the following is not a chemical change

Asked by admin @ 04/08/2021 in Chemistry viewed by 348 persons

1. Which of the following is not a chemical change? a) Formation of curd b) ripening of banana c) corrosion of irond) melting of wax

What property stays the same during physical and chemical changes

Asked by admin @ 02/08/2021 in Chemistry viewed by 325 persons

which of the following property remains same during physical as well as a chemical changes A. Density B. Shape C. Mass d. Arrangement of particle

Which of the following does not indicate that a chemical change may have taken place

Asked by maham237 @ 24/12/2020 in Chemistry viewed by 378 persons

Which of the following does NOT indicate change may have taken place? . . A - Fracture Formation. B - Gas Production . C - Precipitate Formation . D - …