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41
Mercury is the only metal that remains liquid at 0°C. this is due to . . . . . . . .
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Answer & Solution
Answer: Option B
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42
Match List I with List II.
List-I List-II
a. German silver 1. Tin
b. Solder 2. Nickel
c. Bleaching powder 3. Sodium
d. Hypo 4. Chlorine
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Answer: Option A
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43
What is another name for calcium oxide?
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Answer: Option A
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44
Constantan is an alloy of copper and . . . . . . . .
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Answer: Option B
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45
How Magnesium Milk is Used
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Answer: Option A
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46
The sulphide ores are converted into oxides by heating strongly in the presence of excess air. This process is known as:
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Answer: Option D
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47
Which of the following is the least reactive?
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Answer: Option B
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48
Which one of the following is not an alkaline earth metal?
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Answer: Option D
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49
Natrium is the Latin name of which of the following:
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Answer: Option B
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50
The softest mineral, Talc (Soapstone) is mainly
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Answer: Option D
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