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SAI International School
                                                       Class-X

                                               Subject_ Chemistry
                                          Topic- Acids, Bases & Salts
                                              Sub Topic- pH of Salts

                                               HOME ASSIGNMENT
               OBJECTIVE:
               MCQs
               Q.1
                     When Ca (OH)2 reactswith CO2(g), it will giveCaCO3(s) and H2O (l). The
                     nature of CaCO3  is

                     (a) acidic      (b) basic     (c) neutral     (d) All are possible
               Q.2
                     Reaction of an acid with a base is known as-

                     (a) decomposition  (b) combination

                     (c) redox reaction  (d) neutralization
               Q.3
                     Aqueous  solution  of  copper  sulphate  reacts  withaqueous ammonium
                     hydroxide solution to give.

                     (a) brown precipitate        (b) pale blue precipitate

                     (c) white precipitate        (d) green precipitate
                     For Assertion& Reason question follow the following directions.
               DIRECTION: Each of these questions contains an Assertion followed by Reason.
               Read them carefully and answer the question on the basis of following options.
               You have to select the one that best describes the two statements.
               (a) If both Assertion and Reason are correct and Reason is the correct explanation
               of Assertion.
               (b) If both Assertion and Reason are correct, but Reason is not the correct
               explanation of Assertion.

               (c) If Assertion is correct but Reason is incorrect.

               (d) If Assertion is incorrect but Reason is correct.
               (e) If Assertion & Reason both are incorrect.

               Q.4
                     Assertion : H3PO4  and H2SO4  are known as polybasicacids.

                     Reason : They have two or more than two protons per molecule of
                     the acid.


               Q.5    Assertion : pH of ammonium chloride solution is inacidic range.
                     Reason : Solution of a salt of weak base and strong acid is acidic.




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