Page 1 - 4. HOME ASSIGNMENT-( INDICATORS OF ACIDS & BASES)
P. 1

SAI International School
                                                       Class-X
                                               Subject_ Chemistry

                                          Topic- Acids, Bases & Salts
                                  Sub Topic- Indicators of Acids & Bases
                                               HOME ASSIGNMENT


               OBJECTIVE-
               MCQs
                 Q.1  Which of the following acid is present in sour milk?

                        (a) glycolic acid (b) lactic acid (c) citrus acid (d) tartaric acid

                 Q.2   Incorrect statement about acids is/are
                       (a) they have sour taste (b) they may change the colour of indicator

                       (c) they changes the colour or blue litmus to red (d) they change the colour of
                       red litmus to blue

                 Q.3  The acid used in making of vinegar is-

                       (a) formic acid              (b) acetic acid

                       (c) sulphuric acid           (d) nitric acid

                    ➢  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: Phenolphthalein gives pink colour in basic solution.
                       Reason: Phenolphthalein is a natural indicator.
                 Q.5   Assertion: Baking soda creates acidity in the stomach.
                       Reason: Baking soda is alkaline.






               1
   1   2