Home
Class 12
CHEMISTRY
(A) Lactose is a reducing sugar. (R) L...

(A) Lactose is a reducing sugar.
(R) Lactose contains glucose and galactose units.

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

Both (A) and (R) are false

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • BIOMOLECULES

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE-3 (PREVIOUS NEET/AIPMT QUESTIONS)|30 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

Which is a reducing sugar?

What are reducing sugars ?

Sucrose contains glucose and fructose linked by

(A) Lactose is a reducing Sugar (R) Lactose if formed by glucosidic link between C_1 of (D) - galactose and C_4 of b- (D) - glucose

Identify the reducing sugar.

(A) Sucrose is not a reducing sugar. (R) In sucrose, glucose is in pyranose form and fructose is in furanose form.

Observe the following statements (i) Sucrose has glycosidic linkage (ii) Cellulose is present in both plants and animals (iii) Lactose contains D-galactose and D-glucose units The correct statements are .

Incorrect statements among the following (A) Sucrose is reducing sugar (B) Two alpha- D- glucose units in maltose are linked by 1,4-linkage (C ) beta - D glucose and beta- D fructose units are linked by 1, 4-linkage in lactose (D) All polysaccharides are reducing nonsugars

18 gms of glucose contains

AAKASH SERIES-BIOMOLECULES-OBJECTIVE EXERCISE-4 (ASSERTION (A) & REASON (R) TYPE QUESTIONS :)
  1. (A) Cane sugar undergoes inversion in aqueous solution. (R) Cane sug...

    Text Solution

    |

  2. (A) C6 H(10) O5 is a carbohydrates. (R) Most of the carbohydrates ha...

    Text Solution

    |

  3. (A) Lactose is a reducing sugar. (R) Lactose contains glucose and ga...

    Text Solution

    |

  4. (A) Lactose is a reducing Sugar (R) Lactose if formed by glucosidic ...

    Text Solution

    |

  5. (A) D-Glucose and D-Mannose form identical osazone on reaction with ex...

    Text Solution

    |

  6. (A) Sucrose is reducing sugar where as maltose is non-reducing sugar. ...

    Text Solution

    |

  7. (A) Glucose gives a reddish-brown ppt with Fehling's solution. (R) R...

    Text Solution

    |

  8. (A) Sucrose is a non-reducing carbohydrate. (R) In sucrose both the ...

    Text Solution

    |

  9. (A) Glycogen is known as animal starch. (R) The structure of glycoge...

    Text Solution

    |

  10. (A) Acetic acid fit into Cx(H2O)y gneral formula of carbohydrates. ...

    Text Solution

    |

  11. (A) Honey has been used for a long time as an instant source of energy...

    Text Solution

    |

  12. (A) Starch gives blue colour with iodine. (R) Starch form complex wi...

    Text Solution

    |

  13. (A) DNA stores all the hereditary information of a biological species....

    Text Solution

    |

  14. (A) 2-deoxyribose is reducing sugar. (R) 2-deoxyribose is constituen...

    Text Solution

    |

  15. (A) Guanine unites with Cytosine but not with Thymine. (R) Guanine a...

    Text Solution

    |

  16. (A) Adenine pairs up with thymine but not with cytosine. (R) With cy...

    Text Solution

    |

  17. (A) The pyrimidine base thymine is present in RNA. (R) DNA controls ...

    Text Solution

    |

  18. (A) In double helical structure of DNA, cytosine pairs with guanine wi...

    Text Solution

    |

  19. (A) Uracil occur in RNA. (R) RNA controls the synthesis of proteins.

    Text Solution

    |

  20. (A) DNA finger printing is used in forensic labs. (R) Every individu...

    Text Solution

    |