Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET 2021
Exam
NEET
Year
2021
Subject
Botany
Chapter
Plant - Growth and Development

NEET 2021 · Botany · Plant - Growth and Development

The plant hormone used to destroy weeds in a field is:

The plant hormone used to destroy weeds in a field is:

Options

  1. AIAA
  2. BNAA
  3. C2,42, 4-D
  4. DIBA

Correct answer

C. 2,42, 4-D

Step-by-step solution

2,4−D2, 4 - D or 2,42, 4-Dichlorophenoxyacetic acid is one of the synthetic auxins. This chemical is used to eliminate the monocotyledonous plants and as weedicides.
Practice Plant - Growth and Development on Quantrex Academy →

More from Plant - Growth and Development

Heterophyllous development in response to environment is an example of which of the… NEET 2026Length of the stem at time 0 is 20 cm. The arithmetic growth rate is 30 cm per day. What… NEET 2026Which of the following plant growth regulators promotes internode elongation prior to… NEET 2026Which one of the following is not a characteristic of plant cells in the phase of… NEET 2026Match List I with List II : List I (Growth Regulator) List II (Function/Effect) A. 2,4 -D… NEET 2026Which of the following plant growth regulators is used as herbicide ? NEET 2026Which one of the following phytohormones promotes nutrient mobilization which helps in… NEET 2025Read the following statements on plant growth and development. (A) Parthenocarpy can be… NEET 2025 Full Plant - Growth and Development list All NEET PYQs