निम्न अभिक्रिया के सन्दर्भ में,
I. `C_(2)H_(5)OH overset(A)to CH_(2)=CH_(2)+H_(2)O`
II. `H_(3)C-underset(OH)underset(|)(CH)-CH_(3) overset(B)to H_(3)C-CH=CH_(2)+H_(2)O`
III. `H_(3)C-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C )-OH overset(C )to H_(3)C-underset(CH_(3))underset(|)(C )=CH_(2)+H_(2)O`
दी गयी अभिक्रिया में A,B एवं c को पहचानिए

Options

A. `A- 20% H_(3)PO_(4), 358 K, B-85% H_(3)PO_(4), 440K, C-H_(2)SO_(4), 443K`
B. `A-85% H_(3)PO_(4) 440K, B-H_(2)SO_(4), 443K, C-20% H_(3)PO_(4), 358K`
C. `A-H_(2)SO_(4), 443K, B-85% H_(3)PO_(4) 440K, C-20% H_(3)PO_(4), 358K`
D. `A-H_(2)SO_(4), 443 K , B-20% H_(2)SO_(4), 358K, C-85% H_(3)PO_(4), 440K`

Answer

C

Explanation

सांद्र `H_(2)SO_(4)` के साथ 443K ताप पर एथेनॉल का निर्जिलीकरण होता है
`C_(2)H_(5)OH underset(443K)overset(H_(2)SO_(4))to CH_(2)=CH_(2)+H_(2)O`
`CH_(3)-overset(OH)overset(|)(CH)-CH_(2) underset(440K)overset(84% H_(3)PO_(4))to CH_(3)-CH=CH_(2)+H_(2)O`
`H_(3)C-underset(CH_(3))underset(|)overset(CH_(3))overset(|)( C)-OH underset(358K)overset(20% H_(3)PO_(4))to H_(3)C-underset(CH_(2))underset(||)(C )-CH_(3)+H_(2)O`