MCQ
Which of the following molecule contains both ionic and covalent bond
- A$CH_2Cl_2$
- ✓$K_2SO_4$
- C$BeCl_2$
- D$SO_2$
$2{K^ + } \vdots \vdots \vdots \vdots \vdots \vdots \vdots \vdots SO_4^{2 - }$
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$C(g) + 4H(g) \to C{H_4}(g),\,\Delta H = - {x_1}\,k\,cal$
$C{H_4}(g) \to C{H_3}(g) + H(g),\,\Delta H = + y\,k\,cal$
The bond energy of $C - H$ bond is
The correct order of elution in the silica gel column chromatography is
