Question

Activity 1.1
CAUTION: This Activity needs
the teacher's assistance. It
would be better if students
wear suitable eyeglasses.
Clean a magnesium ribbon
about 3-4 cm long by rubbing
it with sandpaper.
Hold it with a pair of tongs.
Burn it using a spirit lamp or
burner and collect the ash so
formed in a watch-glass as
shown in Fig. 1.1. Burn the
magnesium ribbon keeping it
away as far as possible from
your eyes.
What do you observe?
Burner-
Figure 1.1
Burning of a magi
oxide in a watch-​

Answer 1

Answer:

We observe that the burned Magnesium ribbon becomes a powdery substance ie magnesium Oxide and it is ash white in colour.

PRECAUTION

don't watch it directly while burning...

HOPE IT HELPS YOU...

Answer 2

Answer:

we must have observed that magnesium ribbon burns with a dazzling white flame and changes into a white powder. This powder is magnesium oxide. It is formed due to the reaction between magnesium and oxygen present in the air.

Explanation:

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