MCQ
Which orbital is dumb-bell shaped ?
- A$s-$ orbital
- ✓$p-$ orbital
- C$d-$ orbital
- D$f-$ orbital
$0,+1$, or $-1$
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Reason : Zinc has a more negative electrode potential than iron.
$(i)$ $1s^22s^2p^63s^1$ $(ii)$ $1s^22s^22p^64s^1$
Which of the following statements is/are false ?
$(a)$ Energy is required to change $(i)$ to $(ii)$
$(b)$ $(i)$ represents $‘Na’$ atom
$(c)$ $(i)$ and $(ii)$ represent different elements
$(d)$ More energy is required to remove one electron from $(i)$ than $(ii)$
$(R= 8.314\,\,JK^{-1}\,\,mol^{-1};\,\,ln\,2 = 0.693;\,\,ln\,3 = 1.098)$