Home
Class 12
CHEMISTRY
0.436 g of acetyl derivative of a polyhy...

0.436 g of acetyl derivative of a polyhydric alcohol(molecular mass=92) requires 0.336 g of KOH for hydrolysis. Calculate the number of hydroxyl groups in the alcohol.

Text Solution

Verified by Experts

We know,`w/W (M+42n)56n
Given:w=0.336g.W=0.436g, M=92
`implies(0.336)/(0.436) (92+42n)=56n`
`impliesn =3 implies `The alcohol is trihydric
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    PATHFINDER|Exercise QUESTION BANK|54 Videos

  • HALOALKANES AND HALOARENES

    PATHFINDER|Exercise QUESTION BANK|222 Videos

Similar Questions

Explore conceptually related problems

Chlorophyll contains 2.68% of magnesium metal by mass. Calculate the number of Mg atoms present in 2.0g of chlorophyll.

A polyhydric alcohol having moleculer weight 180 on acetylation gives an acetyl derivatives having moleculer weight 390. No of-OH group in it.

From the two arms of a beam balance, a metal body weighing 20 g and a piece of glass are suspended. The apparent weights of these two bodies when measured in water are found to be the same. If immersed in alcohol instead of water, the mass of the metal needs to be increased by 0.84 g for balancing the beam. Calculate the mass of the glass piece. [Given, density of water = 1g*cm^(-3) , density of alcohol = 0.96g*cm^(-3) ]

0.1 mole of a hydroxyl compound reacts with 62.5 g PCl_5 (mol.wt.208.5) Determine the number of -OH groups

Calculate the mass of diamond that will contain the same number of C-atoms as that in 0.1g of graphite.

Sodium crystallises in a cubic lattice and the edge length of the unit cell is 430 pm. Calculate the number of atoms in the unit cell. (Atomic mass Na = 23 amu, Density of Na = 0.9623 g cm^(-3) )

0.36 g of an alcohol R-OH was added ot CH_3MgBr and the gas evolved measured 112 mL at STP. The molar mass of R-OH will be

Sodium crystallises in b.c.c unit cell. Calculate the approximate number of unit cells in 9.2 g of solium (Atomic mass of Na = 23u).

PATHFINDER-FG-1 (ALCOHOLS, PHENOLS & ETHERS)-QUESTION BANK
  1. Why is mobility of H^+ ion in ice greater as compared to liquid water?

    Text Solution

    |

  2. Why 2-chloroethanol is more acidic than ethanol ?

    Text Solution

    |

  3. 0.436 g of acetyl derivative of a polyhydric alcohol(molecular mass=92...

    Text Solution

    |

  4. Draw the product of each reaction:

    Text Solution

    |

  5. Draw the product of each reaction:

    Text Solution

    |

  6. Draw the product of each reaction:

    Text Solution

    |

  7. Give the major product formed when each alcohol in the presence of H2...

    Text Solution

    |

  8. Give the major product formed when each alcohol in the presence of H2...

    Text Solution

    |

  9. Give the major product formed when each alcohol in the presence of H2...

    Text Solution

    |

  10. Give the major product formed when each alcohol in the presence of H2...

    Text Solution

    |

  11. Give the major product formed when each alcohol in the presence of H2...

    Text Solution

    |

  12. Predict the major product of acid catalysed dehydration of (a) 1-meth...

    Text Solution

    |

  13. Propose a mechanism for the following reaction.

    Text Solution

    |

  14. Classify alcohols as primary and secondary alcohols and write the stru...

    Text Solution

    |

  15. Classify alcohols as primary and secondary alcohols and write the stru...

    Text Solution

    |

  16. Starting with bromobenzene and any other needed reagents, outline a sy...

    Text Solution

    |

  17. Draw the organic products in each reaction:

    Text Solution

    |

  18. Draw the organic products in each reaction:

    Text Solution

    |

  19. Draw the organic products in each reaction:

    Text Solution

    |

  20. Draw the organic products in each reaction:

    Text Solution

    |