MCQ
Which of the following statements is correct?
- AEvaporation occurs only at the surface.
- BEvaporation takes place at all temperatures.
- ✓Both $(a)$ and $(b)$ are correct.
- DNone of these
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(Given $R =0.082\,L\,atm\,K ^{-1}\,mol ^{-1}$ )
$(A) \,2p_y +2p_y \to \pi-$ Bond formation
$(B) \,2p_x + 2p_x \to \sigma-$ Bond formation
$(C)\, 3d_{xy} + 3dp_{xy} \to \pi$ -Bond formation
$(D)\, 2s + 2p_y \to \pi-$ Bond formation
$(E)\, 3d_{xy} + 3d_{xy} \to \delta -$ Bond formation
$(F)\, 2p_s + 2p_s \to \sigma-$ Bond formation


