Page 1 - HOME ASSIGNMENT-1(OBJECTIVE & SUBJECTIVE QUESTIONS)
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SAI International School
Class-X
Subject_ Chemistry
Topic- Acids, Bases & Salts
Sub Topic- pH of Acids & Bases
HOME ASSIGNMENT
Objective-Assessment:
MCQs
Q.1 You are having five solutions A, B, C D and E with pH values as
follows:
A=18, B=7, C =8.5, D = 8 and E = 5
Which solution would be most likely to liberate hydrogen with
magnesium powder?
(a) Solution A and B (b) Solution A
(c) Solution C (d) All of the above
Q.2
The correct statement regarding universal indicator is
(a) it is an indicator having pH = 7
(b) it gives blue colour at pH = 3
(c) it becomes colourless at pH = 7
(d) it gives orange colour at pH = 3
Q.3 The pH of a solution is 4.0. What should be the change in the
hydrogen ion concentration of the solution, if its pH is to
increased to 5.0.
(a) decreases to 1/10 of its original concentration
(b) halved
(c) doubled
(d) increases by 10 times
➢ 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.
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