STATISTICAL TECHNIQUES AND TOOLS
STANDARD ERROR
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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oxygen
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hydrogen
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Either A or B
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None of the above
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Detailed explanation-1: -An oxygen atom is much more electronegative than carbon or hydrogen atoms, so both carbon-oxygen and hydrogen-oxygen bonds are polar. The oxygen atom is slightly negatively charged, and the carbon and hydrogen atoms are slightly positively charged.
Detailed explanation-2: -The more strongly an atom attracts the electrons in its bonds, the larger its electronegativity. Electrons in a polar covalent bond are shifted toward the more electronegative atom; thus, the more electronegative atom is the one with the partial negative charge.
Detailed explanation-3: -Electronegativity is the property of an element to attract electrons towards itself. Among the given elements oxygen is more electronegative. It has 6 electrons in its outermost shell hence it needs 2 electrons to complete its octet so it will accept 2 electrons.