15 Questions
What gives sour taste to materials like lemon, vinegar, and tamarind?
Presence of acids
What is the origin of the term 'acid'?
Latin word 'acidus', meaning 'sour'
What is the basis for classifying substances and materials into different categories?
Colour, odour, taste, physical state, and other properties
What gives a bitter taste to materials like baking soda and soap?
Presence of bases
What are acids prepared from minerals present in the earth called?
Mineral Acids
What are the two categories of acids mentioned in the text?
Mineral Acids and Acids prepared from minerals present in the earth
Why is it dangerous to taste any unknown substance?
It can be harmful and should be avoided, whether at home or in school
What is the origin of the term 'acid'?
It has been derived from the Latin word 'acidus', which means 'sour'
What are some materials that taste sour due to the presence of acids?
Lemon, vinegar, and tamarind
What chemicals give a bitter taste to materials like baking soda and soap?
Bases
What are mineral acids and give examples of mineral acids mentioned in the text?
Mineral acids are acids prepared from the minerals present in the earth. Examples mentioned in the text are hydrochloric acid (HCl), sulphuric acid (H2SO4), nitric acid (HNO3), sulphurous acid (H2SO3), and phosphoric acid (H3PO4).
What properties are often used to classify substances and materials into different categories?
Properties such as color, odor, taste, physical state, and other properties are often used to classify substances and materials into different categories.
Why is it dangerous to taste any unknown substance at home or in school?
It is dangerous to taste any unknown substance because some substances may contain harmful chemicals, and tasting unknown substances can lead to poisoning or other health risks.
What is the origin of the term 'acid' and what does it mean?
The term 'acid' has been derived from the Latin word 'acidus,' which means 'sour.' All sour-tasting materials contain acids.
What gives a sour taste to materials like lemon, vinegar, and tamarind, and what causes this taste?
Materials like lemon, vinegar, and tamarind taste sour due to the presence of chemicals called acids. Sour taste is caused by the presence of acids in these materials.
Test your knowledge of acids and sour-tasting materials with this quiz. Explore the properties of different substances and their classification based on taste, color, and physical state. Learn about the presence of acids in sour-tasting materials like lemon, vinegar, and tamarind.
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