Question

A metal is treated with dilutes sulphuric acid. The gas evolved is collected by the method shown in the figure:
a)Name the gas
b)Is the gas soluble or insoluble in water
c)How will you test the gas
d)Is the gas lighter or heavier than air
e)If the metal used about zinc write down the chemical equation for the evolution
F)Write one industrial use of the gas evolved
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Answer 1

a. Hydrogen gas

b. No, Hydrogen isn't soluble in water.

c. You can test for hydrogen gas by putting a burning splinter near the gas. The splinter will gives out a 'pop' sound (mini explosion) if it is hydrogen gas.

d. Yes, Hydrogen gas is lighter than air.

e. Zn + H2SO4 ---> ZnSO4 + H2

f. One industrial use of Hydrogen is the use of liquid hydrogen as an alternate source of energy.

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