Home
Class 12
CHEMISTRY
In an aquose solution of D-Glucose the p...

In an aquose solution of D-Glucose the percentage of `alpha and beta` anomers at equilibrium condition are respectively

A

80 and 20

B

20 and 80

C

36 and 64

D

64 and 36

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • BIOMOLECULES

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE-1 (AMINO ACIDS AND PROTEINS)|35 Videos

  • BIOMOLECULES

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE-1 (NUCLEIC ACIDS)|30 Videos

  • BIOMOLECULES

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE-1 (POLYSACCHARIDES)|16 Videos

  • ATOMIC STRUCTURE

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|43 Videos

  • CARBOHYDRATES

    AAKASH SERIES|Exercise Practice Sheet-5|30 Videos

Similar Questions

Explore conceptually related problems

The aqueous solution of glucose is 10% w/w of solution, the percentage of w/w of solvent is

When an aqueous solution of D-glucose is treated with a base, it is converted into D-fructose and D-mannose, this conversion (isomerisation) involves

If alpha, beta are solutions of a cos x + b sin x = c then sin alpha + sin beta =

The optical rotation of the alpha form of a pyranose is + 150.70, that of the beta form is +52.80. In solution an equlibrium mixture of the anomers has an optical rotation of +80.20. The percentage of the alpha form at equilibrium is

If alpha, beta are solutions of a cos x + b sin x = c then cos alpha + cos beta=

D(+) Glucose has melting point 140^(@)C and specific rotation [a]_(D)^(25) is 112^(@)C . Another D(+) Glucose has melting point 150^(@)C and specific rotation [a]_(D)^(25) is +18.7^(@)C . The two form have significantly different optical rotation but when an aqueous solution of either form is allowed to stand, it rotation changes. The specific rotation of one form decreases and rotation of other increases until both solution show the same value +52.7^(@) . The change in rotation towards an equilibrium value is called mutarotation [alpha]_(D)^(25) = +18.7^(@)C " " [alpha]_(D)^(25) = +112^(@)C What percentage of beta-D-(+) glucopyranose found at equilibrium in the aqueous solution?

If alpha, beta are solutions of a tan theta + b sec theta = c then tan (alpha + beta)=

If alpha, beta are the solutions of a cos 2theta + b sin 2theta = c , then tan alpha tan beta=

D(+) Glucose has melting point 140^(@)C and specific rotation [a]_(D)^(25) is 112^(@)C . Another D(+) Glucose has melting point 150^(@)C and specific rotation [a]_(D)^(25) is +18.7^(@)C . The two form have significantly different optical rotation but when an aqueous solution of either form is allowed to stand, it rotation changes. The specific rotation of one form decreases and rotation of other increases until both solution show the same value +52.7^(@) . The change in rotation towards an equilibrium value is called mutarotation [alpha]_(D)^(25) = +18.7^(@)C " " [alpha]_(D)^(25) = +112^(@)C Mutarotation is characteristic feature of

A vertical pole subtends an angle Tan ^(-1) (( 1)/(2)) at a point P on the ground. On the ground .If the angles subtends by the upper half and the lower half of the pole at P are respectively alpha and beta then ( tan alpha, tan beta)

AAKASH SERIES-BIOMOLECULES-OBJECTIVE EXERCISE-2 (MONOSACCHARIDES)
  1. Which of the following reagents can not be used to distinguish between...

    Text Solution

    |

  2. Oxidation of glucose with Ag(2)O gives

    Text Solution

    |

  3. In an aquose solution of D-Glucose the percentage of alpha and beta an...

    Text Solution

    |

  4. alpha-D- Glucose and beta - D glucose differ from each other due to di...

    Text Solution

    |

  5. Which of the following statements is correct about D - Glucose and D -...

    Text Solution

    |

  6. The number of chiral centers in the open chain structure of glucose is

    Text Solution

    |

  7. X overset(HI)larr"Glucose" overset(HNO3) rarrY. "What are " X and Y?

    Text Solution

    |

  8. With how many molecules of acetic anhydride does not molecule of gluco...

    Text Solution

    |

  9. Which one of the following has two alpha-D- Glucose units ?

    Text Solution

    |

  10. Match the following columns

    Text Solution

    |

  11. The number of chiral centres in the cyclic hemiacetal form of Glucose ...

    Text Solution

    |

  12. Which of the following statements about ribose is incorrect ?

    Text Solution

    |

  13. Which one'of the following is the configu- ration standard for giving ...

    Text Solution

    |

  14. The correct match is

    Text Solution

    |

  15. When the monosaccharide is converted to D-glyceraldehyde, then which c...

    Text Solution

    |

  16. The mixture of compounds formed when glucose undergoes reversible isom...

    Text Solution

    |

  17. D -Glucose shows mutarotation because,

    Text Solution

    |

  18. The end product (B) formed in the reaction sequence. Glucose underset(...

    Text Solution

    |

  19. Glucose overset(H2O)underset("Enzyme") rarr C2H5OH + CO2 + Energy T...

    Text Solution

    |

  20. Amylopectin is a polymer of

    Text Solution

    |