MCQ
Ethylene is prepared by the dehydration of
- ✓Ethyl alcohol
- BMethyl alcohol
- CAcetic acid
- DOxalic acid
✓
Answer
Correct option: A.
Ethyl alcohol
a
(a) $C{{H}_{3}}-C{{H}_{2}}-OH\underset{\text{Dehydration}}{\mathop{\xrightarrow{\text{Conc}\text{. }{{H}_{2}}S{{O}_{4}}}}}\,C{{H}_{2}}=C{{H}_{2}}+{{H}_{2}}O$
(a) $C{{H}_{3}}-C{{H}_{2}}-OH\underset{\text{Dehydration}}{\mathop{\xrightarrow{\text{Conc}\text{. }{{H}_{2}}S{{O}_{4}}}}}\,C{{H}_{2}}=C{{H}_{2}}+{{H}_{2}}O$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
$Me - C \equiv C - C{H_2} - COCl\xrightarrow{{{H_2}/Pd - C}}$
→Match List $I$ with List $II$.
→| List $I$ (Compound) | List $II$ (Shape/geometry) |
| $A$. $\mathrm{NH}_3$ | $I$. Trigonal Pyramidal |
| $B$. $\mathrm{BrF}_5$ | $II$. Square Planar |
| $C$. $\mathrm{XeF}_4$ | $III$. Octahedral |
| $D$. $\mathrm{SF}_6$ | $IV$. Square Pyramidal |
Choose the correct answer from the options given below:
Relationship between above pair $(A)$ & $(B)$ is
→The dipole moment of $HBr$ is $1.6 \times {10^{ - 30}}\,cm$ and interatomic spacing is $1\,\mathop A\limits^o $. The $\%$ ionic character of $HBr$ is
→The normality of $4\%$ $(w/V)$ $NaOH$ is
→Match items of Row $I$ with those of Row $II$.
→Row $I-Image$
Row $II:$
$(i)$ $\alpha- D -(-)$ Fructofuranose.
$(ii)$ $\beta$-D-(-) Fructofuranose
$(iii)$ $\alpha$-D-(-) Glucopyranose.
$(iv)$ $\beta- D -(-)$ Glucopyranose
Correct match is
Assertion : Low spin complexes have lesser number of unpaired electrons.
→Reason : $[FeF_6]^{3-}$ is a low spin complex.
Characteristics of above reaction is
phenol $\xrightarrow[\Delta ]{{{H^ \oplus }}}X\,\xrightarrow[{(2)\,\,{H_2}O/Zn}]{{(1)\,\,{O_3}}}Y\,;$ $Y$ is
→$\mathop {\boxed{{C_4}{H_9}Cl}}\limits_{Optically\,Active}^{Compound\,A} \xrightarrow[{DMSO}]{{NaCN}}$ $[R]-2-$ methyl Butane Nitrile ; Identify compound $'A'$ ?
→