Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid. true or false

The given statement is true.

Explanation:

Chlorine gas is prepared by heating manganese dioxide with hydrochloric acid.T he reaction takes place in two steps

1) Reaction between manganese dioxide and HCl gives manganese(II) chloride along with water and nascent oxygen.

...[1]

2) Then this nascent oxygen formed in above reaction oxidizes HCl into water and chlorine gas.

..[2]

So , the net chemical reaction comes out to be:

The table shows that as x increases, y decreases. This appears to be an inverse variation. However, the given inverse vaariation in b) does not fit, since if y = 20/x, x = 2 should give y = 10. Also, x = 5 should give y = 4. Therefore, none of these choices is the right answer, so this is A.In an inverse relation, the product of x & y should be a constant, but that is not true in this case.