shaalaa.com
S

NCERT solutions Chemistry Textbook for Class 12 Part 2 chapter 7 Chemistry in Everyday Life

Account
User


Login
Register


      Forgot password?
Share
Notifications

View all notifications
Books Shortlist
Your shortlist is empty

Chapter 7 - Chemistry in Everyday Life

Pages 454 - 455

Why do we need to classify drugs in different ways?

Q 1 | Page 454 |

Explain the term target molecules or drug targets as used in medicinal chemistry.

Q 2 | Page 454 |

Name the macromolecules that are chosen as drug targets.

Q 3 | Page 454 |

Why should not medicines be taken without consulting doctors?

Q 4 | Page 454 |

Define the term chemotherapy.

Q 5 | Page 454 |

Which forces are involved in holding the drugs to the active site of enzymes?

Q 6 | Page 454 |

While antacids and antiallergic drugs interfere with the function of histamines, why do these not interfere with the function of each other?

Q 7 | Page 454 |

Low level of noradrenaline is the cause of depression. What types of drugs are needed to cure this problem? Name two drugs.

Q 8 | Page 454 |

What is meant by the term ‘broad spectrum antibiotics’? Explain.

Q 9 | Page 454 |

How do antiseptics differ from disinfectants? Give one example of each.

Q 10 | Page 454 |

Why are cimetidine and ranitidine better antacids than sodium hydrogen carbonate or magnesium or aluminium hydroxide?

Q 11 | Page 454 |

Name a substance which can be used as an antiseptic as well as disinfectant.

Q 12 | Page 454 |

What are the main constituents of dettol?

Q 13 | Page 454 |

What is tincture of iodine? What is its use?

Q 14 | Page 454 |

What are food preservatives?

Q 15 | Page 454 |

Why is use of aspartame limited to cold foods and drinks?

Q 16 | Page 454 |

What are artificial sweetening agents? Give two examples.

Q 17 | Page 454 |

Name a sweetening agent used in the preparation of sweets for a diabetic patient.

Q 18 | Page 454 |

What problem arises in using alitame as artificial sweetener?

Q 19 | Page 454 |

How are synthetic detergents better than soap?

Q 20 | Page 454 |

Explain the following terms with suitable examples Cationic detergents

Q 21.1 | Page 454 |

Explain the following terms with suitable examples - Anionic detergents

Q 21.2 | Page 454 |

Explain the following terms with suitable examples - Non-ionic detergents

Q 21.3 | Page 454 |

What are biodegradable and non-biodegradable detergents? Give one example of each.

Q 22 | Page 454 |

Why do soaps not work in hard water?

Q 23 | Page 454 |

Can you use soaps and synthetic detergents to check the hardness of water?

Q 24 | Page 454 |

Explain the cleansing action of soaps.

Q 25 | Page 454 |

If water contains dissolved calcium hydrogen carbonate, out of soaps and synthetic detergents which one will you use for cleaning clothes?

Q 26 | Page 455 |

Label the hydrophilic and hydrophobic parts in the following compounds.

CH3(CH2)10CH2OSO3 Na+

Q 27.1 | Page 455 |

Label the hydrophilic and hydrophobic parts in the following compounds.

Q 27.2 | Page 455 |

Label the hydrophilic and hydrophobic parts in the following compounds.

`CH_3(CH_2)_16COO(CH_2CH_2O)_nCH_2CH_2OH`

Q 27.3 | Page 455 |

Where to buy

101
-
178
-
S