Stem is generally (a)____ when young and later often becomes woody and dark (b)_____

Cut surfaces of fruit and vegetables often becomes dark because

Cut surfaces of fruit and vegetables often becomes dark because

Cut surface of fruits and vegatables often become dark because

Cut surface of fruits and vegatables often become dark because

When current is passed through a heater, the heat is generated continously in it but its temperature becomes constant after sometime . Why ?

Aqueous solution of raw sugar (generally brown) when passed over beds of anijmal charcoal becomes

A herb is the one having (a) Green soft and short stems (b) Woody short stems (c) A number of flowers and fruits (d) Annual growth

A herb is the one having (a) Green soft and short stems (b) Woody short stems (c) A number of flowers and fruits (d) Annual growth

A black are [x]on fraiment Na_(2)CO_(3) in the presence of air gives a green compound (a). When Rreen compound (a) died in water it producess dark precipitate (b) and pink solution (e) crystal of (e) when treated with propene produces dark ppr (b) Metal present in ore extracted by

A black are [x]on fraiment Na_(2)CO_(3) in the presence of air gives a green compound (a). When Rreen compound (a) died in water it producess dark precipitate (b) and pink solution (e) crystal of (e) when treated with propene produces dark ppr (b) Geometry around central atom in (a) and (c) respectively