Physical and Chemical Change
| Description: Physical and chemical change. Class VII | |
| Number of Questions: 15 | |
| Created by: Ankita Patil | |
| Tags: Science Formation of Yarn Physical and Chemical Changes Physical Changes and Its Characteristics Common Types of Chemical Changes Identifying Chemical Changes Rusting and Its Prevention |
Which of the following options is/are used as solid fuel(s)?
a. Coal
b. Dung cake
c. LPG
d. Kerosene oil
Which of the following changes are both physical and chemical?
Which of the following changes is/are physical?
In which of the following options is a new substance formed? a. Physical change b. Chemical change c. Reversible change
Which of the following changes take(s) place when iron react with copper sulphate? a. Physical change b. Chemical change c. Reversible change d. Irreversible change
Which of the following is/are not physical change features? a. No new substance is formed b. Can be reversed c. Permanent change d. Temporary change
Which of the following options is/are used to obtain pure substance from its solution? a. Evaporation b. Condensation c. Crystallisation d. Sedimentation
Which of the following options is not a reversible change?
Which of the following options is/are the characterstic(s) of chemical change? a. Irreversible b. Permanent change c. New substance formed d. Temporary change
Which of the following methods is/are used to prevent rusting? a. Crystallisation b. Evaporation c. Galvanisation d. Depositing a layer of zinc
Which of the following changes can be reversed? a. Paper burning into ash b. Nail getting rusted c. Water changing into ice d. Beating of aluminium to make aluminium foil paper
Which of the following fuels is/are liquid? a. LPG b. Wood c. Coal D. Kerosene oil
Which of the following substances is/are elements? a. Nitrogen b. Carbon c. Potassium Permanganate d. Mercuric Oxide
Which of the following changes is/are chemical? a. DIssolving salt and sugar in water b. The curding of milk c. Freshly cut brinjal or apple d. Melting of ice
Which of the following is/are the characteristic(s) of physical change? a. Permanent change b. Irreversible change c. Temporary change