MCQ
Phosphine is produced by adding water to
- A$Ca{C_2}$
- B$HP{O_3}$
- ✓$C{a_3}{P_2}$
- D${P_4}{O_{10}}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Assertion $A$ : $Image-I$ can be easily reduced using $Zn - Hg / HCl$ to $Image-II$
Reason $R : Zn - Hg / HCl$ is used to reduce carbonyl group to $- CH _2-$ group.
In the light of the above statements, choose the correct answer from the options given below:
$PhCHO + Ph \cdot CHO \xrightarrow[in\,\,{{D}_{2}}O]{NaOD} A + \begin{matrix} O \\ || \\ Ph-C-{{O}^{-}} \\ \end{matrix}$$\left( Ph\right.$ is $\left.- C _{6} H _{5}\right)$
Reason : $NaOH$ is strong alkali.
$Pt|H_2(P_1\ atm)\ | \ H^+(x_1M)\ ||\ H^+(x_2M)\ |\ H_2(P_2\ atm)\ |Pt$ .
The cell reaction will be spontaneous if