Question

Q2. Multiple Choice Questions (6 Marks)

(i) Sodium bicarbonate is commonly called
(a) Lime water (b) Slaked lime (c) Washing soda (d) Baking soda

(ii) Which of the following statements is correct?
(a) Indicator is a substance that shows different colors in acidic and basic solution.
(b) Turmeric stain on a white shut turns to red when it is washed with soap.
(c) Lime water is a solution of calcium hydroxide.
(d) All the above are correct.

(iii)Neutralisation reaction is a
(a) physical and reversible change. (b) physical change that cannot be reversed.
(c) chemical and reversible change. (d) chemical change that cannot be reversed

(iv).Which of the following is an acid-base indicator?
(a) Vinegar (b) Lime water (c) Turmeric (d) Baking soda

(v)Litmus, a natural dye is an extract of which of the following?
(a) China rose (Gudhal) (b) Beetroot (c) Lichen (d) Blue berries (Jamun)

(vi)Which medicines are used for treating indigestion?
(a) Antibiotic (b) Analgesic (c) Antacids (d) Antiseptic

Answer 1

Answer:

1.d baking soda

6.c antacids

Answer 2

Answer:

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