Question

Conical flask
Dilute sulphuric acid
Zinc granules
a. Do you observe anything happening around the zinc granules?
b. Is there any change in its temperature?
c. Why is glass tube not dipped in dil H2SO4?
d. How is H2 gas collected by downward displacement or upward displace
of waici?
e. Is Hy gas soluble or insoluble in water?
f. Is H2 gas heavier or lighter than air?
A reddish brown metal X when heated in presence of oxygen forms a black
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Answer 1

Here is your ANSWER⤵


a. Yes, sulfur is depositing around zinc.

b. yes, there is increase in temperature.

c. If we will dip glass tube in H2SO4 then we will not able to check or observe the presence of hydrogen gas that is producing.

d. H2 gas is evolved during the reaction because Zn displaces H2 from H2SO4.
And also due to the temperature of the tube.

e. H2 gas is soluble in water.

f. H2 is lighter than air.

HOPE THIS HELPS U............❤