MHT CET · Chemistry · Alcohols Phenols and Ethers
Which of the following phenols is isolated from defensive secretion of grasshopper species?
- A 4 - Methylphenol
- B Benzene-1, 3- diol
- C 2, 5 - dichlorophenol
- D Phenol
Answer & Solution
Correct Answer
(C) 2, 5 - dichlorophenol
Step-by-step Solution
Detailed explanation
The defensive froth emitted by the grasshopper Romalea microptera contains several odorous compounds (phenols, terpenes, benzoquinone), including a chlorinated aromatic compound, 2,5-dichlorophenol. This compound, which is repellent to ants and therefore defensively useful to the grasshopper, probably stems from herbicide or herbicide derivative ingested by the insect with its diet. Although there is precedent for the defensive employ by one species of chemical agents produced by another, no instance was known involving secondary utilization of a pesticide dispensed by man.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- Identify the element having smallest ionic size in +3 state from following.MHT CET 2024 Medium
- Which element from following is the last element of 5d-transition series?MHT CET 2024 Easy
- What is the number of moles of electrons passed when current of 5 ampere is passed through a solution of \(\mathrm{FeCl}_3\) for 20 minutes?MHT CET 2021 Medium
- Identify the product Y in following reaction
MHT CET 2020 Easy - The molality of solution containing 15.20 g of urea, (molar mass = 60) dissolved in 150 g of water isMHT CET 2017 Easy
- Which among the following is dicarboxylic acid?MHT CET 2025 Easy
More PYQs from MHT CET
- If line \(x+y=0\) touches the curve \(a x^{2}=2 y^{2}-b\) at \((1,-1)\),
then the values of \(a\) and \(b\) are respectivelyMHT CET 2020 Easy - Human placenta is called haemochorial because _________ .MHT CET 2024 Hard
- If \(\sin (x+y)+\cos (x+y)=\sin \left[\cos ^{-1}\left(\frac{1}{3}\right)\right]\), then \(\frac{d y}{d x}=\)MHT CET 2020 Medium
- The height at which the weight of the body becomes \(\left(\frac{1}{9}\right)^{\text {th }}\) its weight on the surface of earth is ( \(R=\) radius of earth)MHT CET 2023 Medium
- A lift of mass 'm' is ascending with an acceleration 'a' (a \( < \mathrm{g}\) ). The tension in the cable of the lift is (g= acceleration due to gravity)MHT CET 2020 Easy
- The solution of the differential equation \(\frac{d y}{d x}=\frac{x-y+3}{2(x-y)+5}\) isMHT CET 2008 Easy