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STD 11 - 13. Plant growth and development — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 13. Plant growth and development1 Mark
MCQ
$2, 4-D$  is a
  • A
    Insecticide
  • ✓
    Weedicide
  • C
    Nematicide
  • D
    Rodenticide
✓

Answer

Correct option: B.
Weedicide
b
(b) $2, 4-D$  is a selective weedkiller. It is highly toxic to broad-leaved plants. It increases carbohydrate metabolism to such an extent that the plants burn themselves to death in dicots.

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