Page 1 - HOME ASSIGNMENT-1 (OBJECTIVE & SUBJECTIVE QUESTION)
P. 1

SAI International School
                                                       Class-X

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

                                               HOME ASSIGNMENT
               OBJECTIVE:
               MCQs
                 Q.1  If a few drops of a concentrated acid accidentally spill over the hand of a
                       student, what should be done?

                        (a) Wash the hand with saline solution

                        (b) Wash the hand immediately with plenty of water and apply a paste of
                       sodium hydrogen carbonate

                       (c) After washing with plenty of water apply solution of sodium hydroxide on
                       the hand

                       (d) Neutralise the acid with a strong alkali

                 Q.2  Which of the following phenomena occur, when a small amount of acid is
                       added to water?

                       (i) Ionisation (ii) Neutralisation (iii) Dilution (iv) Salt formation

                 Q.3   A solution reacts with crushed egg-shells to give a gas that turns lime-water
                       milky. The solution contains
                       (a) NaCl                       (b) HCl

                       (c) LiCl                       (d) KCl


                    ➢  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: Sodium hydroxide reacts with zinc to produce hydrogen gas.
                       Reason: Acids reacts with active metals to produce hydrogen gas.

                 Q.5    Assertion: Salts are the products of an acid-base reaction.
                       Reason : Salt may be acidic or basic.




               1
   1   2