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41
An amalgam of metal has which other element?
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Answer: Option D
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42
Which pair of following is of Copper alloys?
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Answer: Option C
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43
Which of the following metals reacts vigorously with cold water?
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Answer: Option B
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44
Which one of the following elements will not react with dilute HCl to produce H2?
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Answer: Option A
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45
What is baking soda?
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Answer: Option C
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46
Which of these neither a metal nor mineral-
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Answer: Option A
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47
Chemical name of caustic soda is . . . . . . . .
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Answer: Option D
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48
Which of the following is used as disinfectant?
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Answer: Option B
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49
Which among the following elements comes under metalloids?
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Answer: Option A
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50
Mica is a
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Answer: Option A
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