std 6 sanskrut ch 5 sem 2

Which of the following sequence of reaction (reagents) can be used for conversion of C_(6)H_(5)CH_(2)CH_(3) into C_(6)H_(5)CH=CH_(2) ?

Name the following halides according to IUPAC system and classify them as alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halides: (i) (CH_(3))_(2)CHCH(Cl)CH_(3) , (ii) CH_(3)CH_(2)CH(CH_(3))CH(C_(2)H_(5))Cl (iii) CH_(3)CH_(2)C(CH_(3))_(2)CH_(2)I , (iv) (CH_(3))_(3)C CH_(2)CH(Br)C_(6)H_(5) (v) CH_(3)CH(CH_(3))CH(Br)CH_(3) , (vi) CH_(3)C(C_(2)H_(5))_(2)CH_(2)Br (vii) CH_(3)C(Cl)(C_(2)H_(5))CH_(2)CH_(3) , (viii) CH_(3)CH=C(Cl)CH_(2)CH(CH_(3))_(2) (ix) CH_(3)CH=CHC(Br)(CH_(3))_(2) (x) p-ClC_(6)H_(4)CH_(2)CH(CH_(3))_(2) (xi) m-ClCH_(2)C_(6)H_(4)CH_(2)C(CH_(3))_(3) , "(xii)" o-Br-C_(6)H_(4)CH(CH_(3))CH_(2)CH_(3)

Draw the resonance structures for the following compounds. Show the electron shift using curved-arrow notation. (a) C_(6)H_(5)OH (b) C_(6)H_(5)NO_(2) (c) CH_(3)CH=CHCHO (d) C_(6)H_(5)–CHO (e) C_(6)H_(5)-overset(+)CH_(2) (f) CH_(3)CH=CHoverset(+)CH_(2)

Pusa Sem 2 is a disease resistant crop variety of

Arrange reactivity of given compounds in decreasing order for electrophilic addition reaction {:(1.C_(6)H_(5)-CH=CH_(2)" "2.C_(6)H_(5)-underset(CH_(3))underset("| ")"C "=CH-CH_(3)),(3.C_(6)H_(5)-underset(C_(6)H_(5))underset("| ")"C "=CH-CH_(3)" "4.CH_(2)=CH-NO_(2)):} Select the correct answer from codes given below