A liquid compound X of molecule are mass 18 you can be obtained from a natural source all the animals and plants need liquid X for their survival when an electric current is passed through 200 g of pure liquid X under suitable conditions then 178 g of gas Y and 22 g of gas Z is produced gas Y is produced let the positive electrode where as gas Z is produced at the negative electrode moreover gas Y supports combustion where as gas Z burns itself causing explosions a)name liquid X a gas Yand gas Z B)what is the ratio of the mass of five elements Z to the mass of element Y in the liquid X. C) which law of chemical come combination is illustrated by this example the name two sources of liquid X D) state an important use of Y in our lives. E)state the sources of liquid X
Answers
A liquid compound X of molecular mass 18 u can be obtained from a number of natural sources. All the animals and plants need liquid X for their survival. When an electric current is passed through 200 grams of pure liquid X under suitable conditions, then 178 grams of gas Y and 22 grams of gas Z are produced. Gas Y is produced at the positive electrode whereas gas Z is obtained at the negative electrode. Moreover, gas Y supports combustion whereas gas Z burns itself causing explosions.
(a) Name (i) liquid X (ii) gas Y, and (iii) gas Z
(b) What is the ratio to the mass of element Z to the mass of element Y in the liquid X?
(c) Which law of chemical combination is illustrated by this example?
(d) Name two sources of liquid X.
(e) State an important use of Y in our life.
Answer:
a) I) water ii) oxygen iii) hydrogen
b) 1 : 8
c) law of constant proportion
d) rivers and well
e) gas Y that is oxygen is essential for breathing.