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# NCERT solutions for Class 12 Chemistry Textbook chapter 16 - Chemistry in Everyday Life [Latest edition]

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## Chapter 16: Chemistry in Everyday Life

#### NCERT solutions for Class 12 Chemistry Textbook Chapter 16 Chemistry in Everyday Life [Pages 448 - 453]

Q 1 | Page 448

Sleeping pills are recommended by doctors to the patients suffering from sleeplessness but it is not advisable to take its doses without consultation with the doctor, Why?

Q 2 | Page 448

With reference to which classification has the statement, ‘ranitidine is an antacid” been given?

Q 3 | Page 450

Why do we require artificial sweetening agents?

Q 4.1 | Page 453

Write the chemical equation for preparing sodium soap from Glyceryl palmitate . Structural formulae of the compounds are given below.

(C15H31COO)3C3H5 – Glyceryl palmitate

Q 4.1 | Page 453

Write the chemical equation for preparing sodium soap from glyceryl oleate . Structural formulae of the compounds are given below.

(C17H32COO)3C3H5 – Glyceryl oleate

Q 5 | Page 453

Following type of nom-ionic detergents are present in liquid detergents, emulsifying agents and wetting agents. Label the hydrophilic and hydrophobic parts in the molecule. Identify the functional group (s) present in the molecule.

#### NCERT solutions for Class 12 Chemistry Textbook Chapter 16 Chemistry in Everyday Life [Pages 454 - 455]

Q 1 | Page 454

Why do we need to classify drugs in different ways?

Q 2 | Page 454

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

Q 3 | Page 454

Name the macromolecules that are chosen as drug targets.

Q 4 | Page 454

Why should not medicines be taken without consulting doctors?

Q 5 | Page 454

Define the term chemotherapy.

Q 6 | Page 454

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

Q 7 | 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 8 | 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 9 | Page 454

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

Q 10 | Page 454

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

Q 11 | Page 454

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

Q 12 | Page 454

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

Q 13 | Page 454

What are the main constituents of dettol?

Q 14 | Page 454

What is tincture of iodine? What is its use?

Q 15 | Page 454

What are food preservatives?

Q 16 | Page 454

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

Q 17 | Page 454

What are artificial sweetening agents? Give two examples.

Q 18 | Page 454

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

Q 19 | Page 454

What problem arises in using alitame as artificial sweetener?

Q 20 | Page 454

How are synthetic detergents better than soap?

Q 21.1 | Page 454

Explain the following terms with suitable examples Cationic detergents

Q 21.2 | Page 454

Explain the following terms with suitable examples - Anionic detergents

Q 21.3 | Page 454

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

Q 22 | Page 454

Q 23 | Page 454

Why do soaps not work in hard water?

Q 24 | Page 454

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

Q 25 | Page 454

Explain the cleansing action of soaps.

Q 26 | Page 455

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

Q 27.1 | Page 455

Label the hydrophilic and hydrophobic parts in the following compounds.

CH3(CH2)10CH2OSO3 Na+

Q 27.2 | Page 455

Label the hydrophilic and hydrophobic parts in the following compounds.

Q 27.3 | Page 455

Label the hydrophilic and hydrophobic parts in the following compounds.

CH_3(CH_2)_16COO(CH_2CH_2O)_nCH_2CH_2OH

## NCERT solutions for Class 12 Chemistry Textbook chapter 16 - Chemistry in Everyday Life

NCERT solutions for Class 12 Chemistry Textbook chapter 16 (Chemistry in Everyday Life) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CBSE Class 12 Chemistry Textbook solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 12 Chemistry Textbook chapter 16 Chemistry in Everyday Life are Drugs and Their Classification, Chemicals in Food - Artificial Sweetening Agents and Food Preservatives, Cleansing Agents - Soaps, Drug-target Interaction - Enzymes as Drug Targets, Drug-target Interaction - Receptors as Drug Targets, Therapeutic Action of Different Classes of Drugs - Antacids, Therapeutic Action of Different Classes of Drugs - Antihistamines, Therapeutic Action of Different Classes of Drugs - Neurologically Active Drugs, Therapeutic Action of Different Classes of Drugs - Antimicrobials, Therapeutic Action of Different Classes of Drugs - Antifertility Drugs, Cleansing Agents - Synthetic Detergents, Chemistry in Everyday Life Numericals.

Using NCERT Class 12 solutions Chemistry in Everyday Life exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in NCERT Solutions are important questions that can be asked in the final exam. Maximum students of CBSE Class 12 prefer NCERT Textbook Solutions to score more in exam.

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