Chemical Reactions and Equations: Daily Life Situations

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What is the purpose of the given activity?

To observe the change in nature and identity of magnesium during a chemical reaction

What can be inferred when milk is left at room temperature during summers?

Milk undergoes a chemical reaction

What is the result of food getting digested in our body?

Food undergoes a chemical change

What is the product formed when a magnesium ribbon burns in oxygen?

<p>Magnesium oxide</p> Signup and view all the answers

What happens when grapes get fermented?

<p>Grapes undergo a chemical change</p> Signup and view all the answers

What does the observation of burning magnesium demonstrate?

<p>Chemical change of magnesium</p> Signup and view all the answers

Which observation can help determine whether a chemical reaction has taken place?

<p>Evolution of a gas</p> Signup and view all the answers

What happens when lead nitrate solution is mixed with potassium iodide solution?

<p>Change in color</p> Signup and view all the answers

What is the product formed when dilute sulfuric acid acts on zinc granules?

<p>Hydrogen gas</p> Signup and view all the answers

Which method can be used to write chemical equations more concisely and usefully?

<p>Using chemical formulae instead of words</p> Signup and view all the answers

What remedy would you suggest for a problem of acidity after overeating?

<p>Baking soda solution</p> Signup and view all the answers

Which natural indicator changes color of blue litmus to red?

<p>Acid</p> Signup and view all the answers

After scrubbing a curry stain on a white cloth with soap, what color does the stain turn into?

<p>Red</p> Signup and view all the answers

Which synthetic indicator can be used to test for acids and bases?

<p>Methyl orange</p> Signup and view all the answers

What does turmeric indicate when it comes in contact with a substance?

<p>Basic nature</p> Signup and view all the answers

Which substance is used to change the color of red litmus to blue?

<p>Base</p> Signup and view all the answers

What is the color of litmus solution when it is neither acidic nor basic?

<p>Purple</p> Signup and view all the answers

Which plant belonging to the division Thallophyta is commonly used to extract litmus solution?

<p>Lichen</p> Signup and view all the answers

What are the natural materials that can indicate the presence of acid or base in a solution?

<p>Red cabbage leaves, turmeric, and coloured petals of some flowers</p> Signup and view all the answers

What are substances that change their odor in acidic or basic media called?

<p>Olfactory indicators</p> Signup and view all the answers

What can be used to test for acids and bases based on their change in color?

<p>Litmus paper</p> Signup and view all the answers

What is the purpose of adding a few drops of an indicator to different solutions according to the given activity?

<p>To observe the change in color</p> Signup and view all the answers

What can be inferred after rinsing both cloth strips with water according to the given activity?

<p>The cloth strips will retain their original odor</p> Signup and view all the answers

What change in color is observed with blue litmus when it comes in contact with an acidic solution?

<p>Changes to red</p> Signup and view all the answers

What happens when a magnesium ribbon burns in oxygen?

<p>$MgO$ is formed</p> Signup and view all the answers

What can be used as an indicator for testing the presence of acids and bases?

<p>Phenolphthalein solution</p> Signup and view all the answers

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