The metal sodium reacts with air and water.
A student reacted sodium with water and measured the volume of gas at intervals of 30
seconds. The results are shown below:
Time/s 0 30 60 90 120 150 180
Volume/cm3
0 40 60 74 86 96 140
a) At what time rate of reaction was fastest?
b) Name the gas liberated in the above reaction.
c) Write the reaction involved.
d) What will be color of universal indicator, when added to solution formed? What does
it show?
e) Write the confirmatory test of the gas evolved
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Answer:
if x=0,y=-1, find the value of
(i) x3-y3
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