(1) oxygen only
(2) oxygen and moisture
(3) oxygen, carbondioxide and moisture
(4) oxygen, hydrogen and moisture
104. Which of the following is Fire extinguisher?
(1) Oxalic Acid
(2) Copper Sulphate
(3) Ammonium Hydroxide
(4) Aluminium Hydroxide
105. Highly melliable metal among the given metals
(1) Iron
(2) Zinc
(3) Gold
(4) Copper
106. Match the following:
Set I
Set II
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Answer:
- the highly malleable metal among the given metal is copper
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