What is the chemical name of Vitamin D

In the following question, select the option which is different from the other three options.

Find the one which does not belong to that group?

Four of the following five pair of letter cluster are alike in a certain manner and one is different. Select the one which is different. 

Select the word which does not belong to the same group from the given alternatives.

Select the letter cluster which does not belong to the same group from the given alternatives.

In each of the following questions, a group of four words / letters /numbers are given. Choose which is odd?

Find the odd one out of the choices given therein.

Find out the odd word/letters/number/number pair from the given alternatives.

Find the one which does not belong to that group?

Four of the following five are somehow similar and therefore create a group. Which is not related to this group?

ZD, LP, WA, UQ, KO