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SAI INTERNATIONAL SCHOOL
                                                      CLASS-VII
                                             SUBJECT- CHEMISTRY
                              TOPIC-PHYSICAL AND CHEMICAL CHANGES
                                       SUB TOPIC- CRYSTALLISATION




               Objective/MCQs


               Choose the correct option/options







               Q.                                Questions                               Skill    Marks
               No.

               1.       What is the reaction in which a solid is obtained in its pure    R&U      1
                        form?

                           a)  Distillation reaction
                           b)  Combination reaction
                           c)  Crystallisation
                           d)  Decomposition reaction



               2.                                                                        U        1

                        Crystallisation is a ………………………change.

                           a)  Physical
                           b)  Chemical
                           c)  Irreversible
                           d)  Fast

               3.       Crystallisation is a process of obtaining                        `A       1

                           a)  Pure solid only
                           b)  Pure liquid only
                           c)  Pure gas only
                           d)  Mixture of solid and a gas











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