41 Questions
Which of the following has cleaning properties and is a petrochemical?
Detergent
What is a function of Dettol not shared with detergent?
Used in soaps to protect skin infection
Which of the following statements is true for both soap and lemon?
Acts as a cleansing agent
Which one of the following is a seed commonly used in beverages?
Lemon
What is soap chemically recognized as?
Sodium salt of higher fatty acid
Which substance among the following is rich in vitamins and minerals and adds flavor to food?
Mustard oil
Which type of sugar is a white crystalline solid?
Table sugar
What is glycine primarily known for?
A non-essential amino acid present in many proteins
What substance is primarily produced by honeybees?
Honey
Where are cane sugar beets a main source of sugar?
India
Which sweetener is derived from sugarcane juice?
Jaggery
What is the primary focus of the left page of the book?
The presence of harmful chemicals in food
What does the table on the left page most likely include?
Different kinds of harmful chemicals and their sources
What kind of visual content is included on the right page of the book?
Visuals of bread slices being eaten
Which topic is addressed by the paragraph on the right page?
The effects of food additives
What can be inferred about the second table on the right page?
It includes examples of food additives and their uses
What does the presence of the hand reaching towards the book suggest?
Engagement with the material
What is the source of Citric Acid in Chuk?
Sour fruits like lemon and citrus
Which of the following substances is NOT used for wound disinfection?
Chuk
Which method is used to obtain oil from seeds?
Pressing
Which chemical is known as carbolic acid?
Phenol
Which of the following statements about soap is false?
Soap contains citric acid
What kind of liquid is Chuk?
Sour and viscous
Which of the following is a primary use of Detergent?
Cleaning household objects
What is the process of soap making called?
Saponification
What is the primary source of common salt?
Extracted from sea water
Which of the following is NOT a function of iodine mentioned in the provided text?
Enhancing taste in food
Where do we primarily obtain iodine from?
Sea weeds
What makes iodised salt different from regular salt?
Addition of iodine
Which compound is critical for the functioning of the thyroid gland?
Iodine
Why is glucose important for living organisms?
It is an important source of energy
What is the potential health risk of consuming too much salt?
Multiple health problems
What is sugar primarily used for other than being a sweetening agent?
Providing energy
Why is understanding chemical elements important in chemistry?
It helps understand more complicated compounds.
What is emphasized as a significant aspect of knowing what compounds are made up of?
Understanding their toxic effects for safety reasons.
Which table in the textbook lists common chemistry substances and their chemical names?
Table 3.1
What does Table 3.2 in the textbook discuss?
Properties of basic chemical substances.
Which property is NOT listed in Table 3.2 for basic chemical substances?
Toxicity
What is the focus of Table 3.3 in the chemistry textbook?
Examining what happens when heating materials for making bread.
What kind of substances does Table 3.1 provide information on?
Examples of common chemical substances.
In the introduction paragraph, why is knowledge of chemistry important in everyday life?
To ensure everyday products are safe to use.
Study Notes
Detergent
- A petrochemical with cleaning properties, used for washing clothes and dishes
- A chemical in nature
Soap
- Used for washing clothes and dishes, and for bathing
- A cleansing agent prepared by heating fat or oil with sodium hydroxide
- Softens skin, sanitizes, and removes odor
Dettol
- Handy for domestic needs and materials
- Used to disinfect household floors, walls of slaughterhouses and animal houses
- Acts as a cleansing agent, helps protect skin from infection
Lemon
- Seeds are pressed to get juice, used in making juice, lemonade, beverages, food coloring, flavor, and medicines
Mustard
- Mustard seed is the main source of mustard oil
- Oil is rich in vitamins and minerals, makes food taste better for many days
Sugar
- A whitish solid crystalline compound made from sugarcane, used as a sweetener
- Used in making jams, candies, and desserts
Oil
- A fatty substance obtained from seeds of some plants
- Used for cooking purposes
- Obtained by pressing seeds of sunflower, mustard, soybean, coconut, walnut, olive, etc.
Chuk
- A sour, viscous liquid extracted from sour fruits like lemon, citrus, bhogate, pamilo, etc.
- Rich in vitamin C, helps make pickles sour and preserves food for many days
Phenol
- An aromatic organic compound, also known as carbolic acid
- Used in making medicines, thread, bakelite (plastics), colors, etc.
- Mildly acidic, corrosive to eyes, skin, and respiratory tract
Chemicals used as cleaners
- Dettol: used for disinfecting wounds, cuts, and burns, and for cleaning septic and diseased parts of the body
- Soap: used for bathing, cleaning household objects, and as a cleansing agent
- Detergent: a cleansing agent, different from soap, used for washing clothes and dishes
Sugar types
- Table sugar: a white crystalline solid, commonly used as a sweetener
- Cane sugar: derived from sugarcane, a main source of sugar in India
- Jaggery: a popular sweetener derived from sugarcane juice
- Honey: a thick, sweet, and viscous fluid produced by honeybees from the nectar of flowering plants
Glycine
- A non-essential amino acid present in many proteins
- Helps improve the health of the respiratory system
Common Salt or Edible Salt
- A white crystalline solid, also known as sodium chloride (NaCl)
- Essential chemical compound used in daily life, obtained from sea water by evaporation
- Iodine is added to common salt to prevent goitre, and it is called "iodised salt"
Iodine
- Obtained from sea weeds
- Essential constituent of the thyroid gland
- Deficiency leads to goitre
- Contributes to the development and growth of the body
Glucose
- A simple sugar found in fruits and vegetables
- An important source of energy for the body
- Essential for growth and development
- Important for brain function
This quiz covers household cleaning agents, including detergents, soaps, and disinfectants, and their uses.
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