Home
Class 12
CHEMISTRY
Give reasons for the following : (i) U...

Give reasons for the following :
(i) Use of aspartame as an artificial sweetener is limited to cold foods.
(ii) Metal hydroxides are better alternatives than sodiumk hydrogen carbonate for treatment of acidity.
(iii) Aspirin is used in prevention of heart attacks.

Text Solution

Verified by Experts

(i) It is unstable at cooking temerature.
(ii) Excessive hydrogencarbonate can make the stomach alkaline and trigger the production of even more acid. Metal hydroxides being insoluble do not increase the pH above neutrality.
(iii) Aspirin has anti blood clotting action.
Promotional Banner

Topper's Solved these Questions

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise IMPORTANT QUESTIONS FOR PRACTICE CHEMISTRY (THEORY-XII) UNSOLVED)|42 Videos

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise SET- I|35 Videos

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise QUESTION PAPER (SECTION-B)|10 Videos

  • SAMPLE PAPER 2019

    XII BOARDS PREVIOUS YEAR|Exercise SECTION: D|1 Videos

Similar Questions

Explore conceptually related problems

Give one example for each of the following: (i) An artifical sweetener whose use is limited to cold drinks. (ii) A non - inoic detergent .

Give reason for the following: Metals other than zinc are not used in the laboratory preparation of hydrogen.

Answer the following : (i) Why is the use of aspartame limited to cold foods and drinks ? (ii) How do antiseptics differ from disinfectants ? (iii) Why do soaps not work in hard water ?

Give reason for the following: Nitric acid, even in its dilute form, is not used in the preparation of hydrogen from metals.

Give reasons for the following: (i) Transition metals form alloys. (ii) Mn_2O_3 is basic whereas Mn_2O_7 is acidic. (iii) Eu^(2+) is a strong reducing agent.

Give reasons for the following statements: (i) Every economy has to make the decision relating to what to produce. (ii) Problem of choice arises because available resources have alternative uses.

State reason for the following : (i) Lemon is used for restoring the shine of tarnished copper vessels. (ii) A metal sulphide is converted into its oxide to extract the metal from the sulphide ore. (iii) Copper wire are used in electrical connections.

XII BOARDS PREVIOUS YEAR-XII BOARDS-QUESTION PAPER (SECTION-C)
  1. An alcohol [A] with molecules formula (C(4)H(10)O) o oxidation with ac...

    Text Solution

    |

  2. Which on of the following compounds will undergo faster hydrolysis rea...

    Text Solution

    |

  3. A compound is formed by the substitution of two chlorine atoms for two...

    Text Solution

    |

  4. Complete the following reactions :

    Text Solution

    |

  5. Give reasons for the following : (i) Use of aspartame as an artifici...

    Text Solution

    |

  6. (a) Name the branched chain component of starch. (b) Ribose in RNA a...

    Text Solution

    |

  7. Give three reactions of glucose which cannot be explained by its open ...

    Text Solution

    |

  8. The following data were obtained during the first order thermal decomp...

    Text Solution

    |

  9. Two reactions of the same order have equal pre exponential factors but...

    Text Solution

    |

  10. (a) A colloidal sol is prepared by the given method in figure. What is...

    Text Solution

    |

  11. Describe how the following steps can be carried out? (a) Recovery o...

    Text Solution

    |

  12. Explain the use of the following : (a) NaCN in Froth Floatation Method...

    Text Solution

    |

  13. Explain the following : (a) Out of Sc^(3+), Co^(2+) " and "Cr^(3+) "...

    Text Solution

    |

  14. A metal complex having composition Cr(NH(3))(4)CI(2)Br has been isolat...

    Text Solution

    |

  15. (a) Identify A-D (b) Distinguish between the following pair of compo...

    Text Solution

    |

  16. (a) Account for the following : (i) Direct nitration of aniline yie...

    Text Solution

    |

  17. (a) A cell is prepared by dipping a zinc rod in 1M zinc sulphate solut...

    Text Solution

    |

  18. (a) Apply Kohlrausch law of independent migration of ions, write the e...

    Text Solution

    |

  19. (a) Account for the following observations : (i) SF(1) is easily hyd...

    Text Solution

    |

  20. (a) What inspired N.Bartlett for carrying out reaction between Xe and ...

    Text Solution

    |