Four word-pairs have been given, out of which three are alike in some manner and one is different. Select the word-pair that is different.
Answer
Correct Answer : c ) Oxygen : 4
Explanation :Looking at the options, we can see that the combination of elements and their atomic numbers are given.
The elements and their atomic numbers are as follows:
Hydrogen - 1
Nitrogen - 7
Oxygen - 8
Chlorine - 17
We can see that the Oxygen and 4 are not correctly given.
Hence, (c) is the correct answer.
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