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Question
The only phytohormone which is a gas at ordinary temperature:
Options
Ethane
Ethyl alcohol
Ethylene
Ethyne
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Solution
Ethylene
Explanation:
The only hormone that is gaseous at standard temperature is ethylene.
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RELATED QUESTIONS
Which of the following is not a plant hormone?
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What plant hormone is responsible for the scientific phenomenon mentioned in 1.1.
Multiple choice question.
Abscisic acid controls ______.
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Match the following lists and select the correct option.
| List I | List II | ||
| i. | 2,4-D | a. | Promotes senescence and ripening of fruits |
| ii. | ABA | b. | DelaysJeaf senescence |
| iii. | Gibberellins | c. | Increases the length of the sugarcane stem |
| iv. | Ethylene | d. | Kills dicotyledonous weeds without affecting mature monocotyledonous plants |
| e. | Stimulates the closure of stomata |
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