Question

c) gas
Que.1 A) Write the correct alternative,
(5)
D) Sound does not travel through
a) Vacuum b) liquid
ii) Co2 is used to make
a) coffee
b) aerated drinks c) methanol
ill) The chemical name of baking soda is
a) Sodium chloride b) sodium bicarbonate c) calcium oxychloride
iv) To discover a sunken ship or objects deep inside the sea
technology
is used.
a) SONAR b) sonography c) pinna.
v) The SI unit of frequency is
a) m/s
b) Hertz
c) cm

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Answer 1

Answer:

b) liquid b) aerated drinks a) sodium chloride c) pinna a) m/s