Page 1 - 4.HOME ASSIGNMENT-(PRESENCE OF IONS IN ACIDS & BASES)
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SAI International School
                                                       Class-X

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

                                               HOME ASSIGNMENT
               OBJECTIVE:
               MCQs
                 Q.1
                       When NaOH and HCl are mixed in equal molar quantities, the result is

                       (a) the formation of salt + H2O                  (b) the formation of salt + H2(g)
                       (c) the formation of salt + O2(g)                (d) All above are correct

                       Ans : (a) the formation of salt + H2O

                       When NaOH and HCl are mixed in equal molar quantities, acid-base reaction
                       takes place and we get salt (NaCl) and water.

                       NaOH +HCl ----------→ NaCl +H2O

                 Q.2
                       Aqueous solution of copper sulphate reacts with aqueous ammonium
                       hydroxide solution to give.
                       (a) brown precipitate      (b) pale blue precipitate        (c) white precipitate
                       (d) green precipitate

                 Q.3   Which of the following is acidic in nature-
                          (a) apple juice           (b) soap solution

                          (c) slaked lime           (d) lime

                    ➢  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: The strength of acids and bases depends on the number of
                          ions and ions produced respectively, when dissolved in water.

                       Reason: Acids like HClO4, which dissociate almost completely in water are
                       called acids.



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