Question:
Identify trihydric phenol from following.
Identify trihydric phenol from following.
Show Hint
Pyrogallol has three OH groups on the benzene ring.
Updated On: Oct 1, 2026
- Hydroquinone
- Catechol
- O-Cresol
- Pyrogallol
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept
Phenols are classed by the number of OH groups on the ring: monohydric (1), dihydric (2), trihydric (3).
Step 2: Detailed Explanation
Hydroquinone (1,4-dihydroxybenzene) has two OH groups. Catechol (1,2-dihydroxybenzene) has two. O-cresol (2-methylphenol) has one.
Pyrogallol (1,2,3-trihydroxybenzene) has three OH groups, so it is trihydric.
Final Answer:
Pyrogallol is the trihydric phenol, option (D). \[ \boxed{\text{Pyrogallol (D)}} \]
Phenols are classed by the number of OH groups on the ring: monohydric (1), dihydric (2), trihydric (3).
Step 2: Detailed Explanation
Hydroquinone (1,4-dihydroxybenzene) has two OH groups. Catechol (1,2-dihydroxybenzene) has two. O-cresol (2-methylphenol) has one.
Pyrogallol (1,2,3-trihydroxybenzene) has three OH groups, so it is trihydric.
Final Answer:
Pyrogallol is the trihydric phenol, option (D). \[ \boxed{\text{Pyrogallol (D)}} \]
Was this answer helpful?
0
0
Top MHT CET Chemistry Questions
- The temperature of $32^{\circ}C$ is equivalent to
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
- If a metal crystallises in bcc structure with edge length of unit cell $4.29 \times 10^{-8}\, cm$ the radius of metal atom is
- Which of the following oxides can act both as an oxidising agent as well as reducing agent ?
- "The mass and energy both are conserved in an isolated system", is the statement of
View More Questions
Top MHT CET Phenols Questions
- In the reaction $ 2 A + \text{dry silver oxide} \xrightarrow { \triangle } \, \text{ether} + 2 \, AgX $ A is a/an
- What is the quantity of hydrogen gas liberated when $46 \,g$ sodium reacts with excess ethanol ? (Given At. mass of Na = 23)
- What amount of bromine will be required to convert 2 g of phenol into 2,4,6-tribromo phenol ?
- Which alcohol of molecular formula $ C_4H_9OH $ cannot be obtained by the reduction of carbonyl compound ?
- Which of the following is most acidic?
View More Questions
Top MHT CET Questions
- During r- DNA technology, which one of the following enzymes is used for cleaving DNA molecule ?
- In non uniform circular motion, the ratio of tangential to radial acceleration is (r = radius of circle, $v =$ speed of the particle, $\alpha =$ angular acceleration)
- The temperature of $32^{\circ}C$ is equivalent to
- The line $5x + y - 1 = 0$ coincides with one of the lines given by $5x^2 + xy - kx - 2y + 2 = 0 $ then the value of k is
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
View More Questions