Which of the following metals reacts vigorously with cold water?
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How many atoms will one mole of Carbon (C-12) contain?
Which term describes an enzyme?
Which of the below options is called a laughing gas?
Which of the following is not a constituent of biogas?
In the modern periodic table, which of the two periods contain 8 elements each?
Name the Russian chemist who stated that the properties of elements are a periodic function of their atomic masses?
What is the process of slow cooling of hot glass called?
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