Question

)
THL - NO
Carb
How to solve
Activity 4.6
Hmo keep the mouth of the test tube away from your face. Use test tube
holaer 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 cach 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 using 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
nela
ler.
OW
im
nd
on.
in
ve
ep
en
Metal/
Non-metal
Test
indou
tube
Reaction with Dilute Reaction with Dilute
Hydrochloric Acia 20
Sulphuric Acid
Room Warm
Room
Warm
Temperature
Temperature
Label
А
Magnesium
er
h
(ribbon) Mild
B
Aluminium (foil)
С
Iron (Alings)
NO
NUO
D
por
Copper (peeled
flexible wire)
Pontul
Charcoal (powder)
No
NO
Sunhur (powder)​

Answer 1

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