std 6 sanskrut ch 6 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) ?

Which of the following is a stronger acid in each of the following pairs ? (a) CH_2 (Cl ) COOH,CH_2 (F ) COOH " " (b ) CH_2 (Cl) CH_2 CH_2 COOH ,CH_3 COOH , CH_3CH(Cl) CH_2 COOH (c ) CH_3 COOH ,C_6 H_5 CH_2 COOH " " (d ) m-NO_2 C_6 H_4 COOH ,p -NO_2 C_6 H_4 COOH (e ) p-NO_2 C_6 H_4 COOH ,C_6 H_5 COOH " " ( f ) m- OHC_6 H_4 COOH,p- OHC _6 H_4 COOH

Basic question on formation OF quadratic equation || 6 std. graph OF quadratic polynomial

Pusa Sem 2 is a disease resistant crop variety of

Give the main products of the reactions : (a) C_(6)H_(6) underset(H_(2)SO_(4))overset(HNO_(3))to (b) C_(6)H_(5)CH_(3) overset(CrO_(2)Cl_(2))to (c) C_(6)H_(5)CH_(2)CH_(2)CH_(3)overset("Alk." KMNO_(4))to (d) C_(6)H_(6)+ Cl_(2) overset ("sunlight")to (e) C_(6)H_(6)+ CH_(3)COOCl overset("Anhyd." AlCl_(3))to

In the reaction C_(6)H_(6)+CH_(2)=CH_(2)overset(HX)to The best acid to be used is