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WorksheetsIS_Unit9_Checkpoint 9.2_E
Total questions: 15
Worksheet time: 14mins
1(a) The degree of acidity or alkalinity of a solution can be determined by using litmus paper.
True
False
1(b) pH paper is prepared by soaking strips of filter paper in litmus solution and drying them before use.
True
False
1(c) Acidic solutions always have a pH value lower than 7.
True
False
2(a) Fill in the blanks.
indicators
acid
alkali
pigments
2(b) Fill in the blanks.
(i) red, (ii) blue
(i) blue, (ii) red
(i) green, (ii) yellow
(i) yellow, (ii) green
2(c) Fill in the blanks.
(i) red, (ii) blue
(i) blue, (ii) red
(i) green, (ii) yellow
(i) yellow, (ii) green
2(d) Fill in the blanks.
acidic
alkaline
neutral
3(a)(i) Which of the following solutions is/are acidic?
A only
A and B only
A and E only
B and E only
3(a)(ii) Which of the following solutions is/are alkaline?
C only
C and D only
C and E only
D and E only
3(a)(iii) Which of the following solutions is/are neutral?
A only
B only
B and C only
C and D only
3(b)(i) Which of the solutions is the most acidic?
A
C
D
E
3(b)(ii) Which of the solutions is the most alkaline?
A
C
D
E
3(c) Which solution(s) will turn red litmus paper blue?
C only
C and D only
C and E only
D and E only
3(d)(i) Which of the solutions is most likely to be limewater?
A
B
C
D
3(d)(ii) Which of the solutions is most likely to be black coffee??
A
C
D
E
