Which of the following metals reacts vigorously with cold water?
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Ice floats on water because its density is
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Which of the following is the most common kidney stone-forming compound?
Which one reveals, more appropriately, functioning of the heart?
Which one is not the cause of kidney stone formation?
One should use porcelain and not metal containers in a microwave oven because..
Which celebrity is the author of the book 'An Unsuitable Boy'?