Fill in the missing fractions. (c ) ? - 3/6 = 3/6

Fill in the missing fractions. (b) ? -3/21 =5/21

Fill in the missing fractions. (a) 7/10 - ? = 3/10

Fill in the missing fractions. (d) ? + 5/27 = 12/27

Fill in the missing information in the following table. ( AS_(4))

Fill in the missing data in the reactions table :

Fill in the boxes : (c ) 1/2 - ? = 1/6

Look at the figures and wirte ' ' , '=' between the given pairs of fractions. (d) 6/6 ______ 3/3 make five more such problems and solve them with your friends.

Express the following as imporper fractions : ( c ) 2 ̶ 5/6

Look at the figures and wirte ' ' , '=' between the given pairs of fractions. (b) 3/4 _____ 2/6 make five more such problems and solve them with your friends.

Identify the electrophile and nucleophile in the following reactions : (a) C_(6)H_(5)N_(2)Cl +KI rarr C_(6)H_(5)I+KCL (b) C_(6)H_(5)N_(2)Cl +C_(6)H_(5)OH rarr C_(6)H_(5)N=N-C_(6)H_(4)OH (c) C_(6)H_(5)N_(2)Cl+CH_(3)OH rarr C_(6)H_(5)OCH_(3) (d) C_(6)H_(5)N_(2)Cl+H_(2)O rarr C_(6)H_(5)OH