Chemistry d-block elements are also called as __________? Options:A. Inner TransitionB. Outer TransitionC. Alkali MetalsD. Both B & CView AnswerB. Outer Transition Continue Reading Previous: Water Gas is a mixture of two gases Hydrogen & Carbon monoxide, while separating Hydrogen gas by liquification process which one is liquefied first__?Next: Which of the following is more acidic in nature?