std 6 sanskrut ch 8 sem2

Pusa Sem 2 is a disease resistant crop variety of

[" A rectangular sheet of copper is "2.00mm" thick and has surface dimensions "8.0cm times24cm" .If the "],[" A long edges are joined to form a tube "24cm" in length,find the resistance of the tube in micro-ohms "],[" between the ends of the tube.Resistivity of copper "=1.6times10^(-8)Sem" ."]

Which one of the following is best catalyst for the reaction shown below? CH_(3)(CH_(2))_(8)CH_(2)Brunderset("benzene")overset(KCN)toCH_(3)(CH_(2))_(8)CH_(2)CN

Which of the following reagent can carry out the converstion. CH_(3)(CH_(2))_(8)CH_(2)OH to CH_(3) (CH_(2))_(8)COOH

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)

Given the hybridistaiton state of each carbon in the following compounds : I. CH_(2) = C = O II. CH_(3) - CH = CH_(2) III. (CH_(3))_(2) CO IV. CH_(2) = CH = C -= N v. C_(6) H_(6)