MCQ
If liquids $A$ and $B$ form an ideal solution
- AThe free energy of mixing is zero
- BThe free energy as well as entropy of mixing are zero
- ✓Enthalpy of mixing is zero
- DThe entropy of mixing is zero
$a) \,V_{\text {mix }}=0$
$b) \,H _{\text {mix }}=0$
$c) \,\Delta G _{\operatorname{mix}}=- ve$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

${(C{H_3} - C{H_2})_2}CuLi\xrightarrow{{C{H_3} - Cl}}\Pr oduct$
| Period number | Group number | |
| $Q$ | $2$ | $15$ |
| $P$ | $3$ | $2$ |
Then formula of the compound formed by $P$ and $Q$ element is