OBJECTIVE LIFE SCIENCE
APPLIED BIOTECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following makes up a molecule of water?
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one atom of hydrogen and one atom of oxygen
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one atom of sodium and one atom of chlorine
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One atom of hydrogen and two atoms of oxygen
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two atoms of hydrogen and one atom of oxygen
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Explanation:
Detailed explanation-1: -A water molecule has three atoms: two hydrogen (H) atoms and one oxygen (O) atom. That’s why water is sometimes referred to as H2O.
Detailed explanation-2: -Strong linkages-called covalent bonds-hold together the hydrogen (white) and oxygen (red) atoms of individual H2O molecules. Covalent bonds occur when two atoms-in this case oxygen and hydrogen-share electrons with each other.
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