Question
Which of the following elements is a noble
gas?Solution
Helium is a noble gas, which is a group of elements known for their low reactivity due to their stable electron configurations. Noble gases are colorless, odorless, and have very low boiling points. Oxygen (O) is a non-metal element essential for life and is commonly found in the atmosphere. Hydrogen (H) is a non-metal element and the lightest element in the periodic table. It is not a noble gas. Carbon (C) is a non-metal element and is the basis of organic chemistry.
N is the brother of M. K is sister of M. P is the brother of O and O is daughter of N. Who is the uncle of P ?
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Consider the following figure :
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Any reaction that produces an insoluble precipitate can be called a:
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