Match Column - I with Column - II and choose the correct answer.

To find the correct matching, let us analyze each floral formula in Column - I and match it with the corresponding family in Column - II:

(a) $\%⚥K_{\left(5\right)}{C}_{1+2+\left(2\right)}{A}_{\left(9\right)+1}{\underset{\_}{G}}_1$:
- % represents zygomorphic symmetry.
- ⚥ represents a bisexual flower.
- K₍₅₎ indicates 5 united (fused) sepals.
- C_1+2+(2) represents a papilionaceous corolla (5 petals: 1 standard, 2 lateral wings, and 2 fused keel petals).
- A₍₉₎₊₁ indicates 10 stamens in a diadelphous arrangement (9 fused together and 1 free).
- G₁ with an underline indicates a superior ovary containing a single carpel (monocarpellary).
This combination of floral features is characteristic of the family Fabaceae. Hence, a matches with (iii).

(b) $\oplus ⚥K_{\left(5\right)}{C}_{\left(5\right)}{A}_5{\underset{\_}{G}}_{\left(2\right)}$ (with epipetalous stamens):
- ⊕ represents actinomorphic symmetry.
- ⚥ represents a bisexual flower.
- K₍₅₎ indicates 5 fused sepals.
- C₍₅₎ indicates 5 fused petals.
- A₅ indicates 5 epipetalous stamens (attached to the petals).
- G₍₂₎ with an underline indicates a bicarpellary, syncarpous, superior ovary.
This combination of floral features is characteristic of the family Solanaceae. Hence, b matches with (iv).

(c) $\oplus ⚥P_{(3+3)}{A}_{3+3}{\underset{\_}{G}}_{\left(3\right)}$ (with epiphyllous stamens):
- P₍₃₊₃₎ represents a perianth composed of 6 tepals in two whorls of 3, often united.
- A₃₊₃ represents 6 epiphyllous stamens arranged in two whorls of 3 (attached to the perianth).
- G₍₃₎ with an underline indicates a tricarpellary, syncarpous, superior ovary.
This combination of floral features is characteristic of the family Liliaceae. Hence, c matches with (ii).

(d) $\oplus ⚥K_{2+2}{C}_4{A}_{2+4}{\underset{\_}{G}}_{\left(2\right)}$:
- K₂₊₂ represents 4 sepals arranged in two whorls of 2.
- C₄ represents 4 free cruciform petals.
- A₂₊₄ represents 6 stamens in a tetradynamous arrangement (2 outer short and 4 inner long).
- G₍₂₎ with an underline indicates a bicarpellary, syncarpous, superior ovary.
This combination of floral features is characteristic of the family Brassicaceae. Hence, d matches with (i).

Matching all columns, we get:
a - (iii), b - (iv), c - (ii), d - (i)