Question

Activity 4.6
(Warning : Keep the mouth of the test tube away from your face. Use test tube
holder to hold the test tube.)
Take samples of metals and non-metals listed in Table 4.5 in separate test
tubes and label them as A, B, C, D, E, and F. With the help of a dropper add 5
mL of dilute hydrochloric acid to each test tube one by one. Observe the
reactions carefully. If no reaction occurs in the cold solution, warm the test
tube gently. Bring a burning matchstick near the mouth of each test tube.
Repeat the same activity sing dilute sulphuric acid instead of the dilute
hydrochloric acid. Record your observations in Table 4.5.
Table 4.5 : Reaction of Metals and Non-metals with Acids
Test
tube
Label
Metal/
Non-metal
Reaction with Dilute
Hydrochloric Acid
Room Warm
Temperature
Reaction with Dilute
Sulphuric Acid
Room Warm
Temperature
А
Magnesium
(ribbon)
B
Aluminium (foil)
С
Iron (filings)
D
Copper (peeled
flexible wire)
E
Charcoal (powder)
F
Sulphur (powder)
49​

Answer 1

Answer:

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