Question

Two substances A and B were made to react to form a third substance $A_{2}B$ according to the following reaction.
$2A+B\to A_{2}B$
Which of the following statement concerning this reaction are incorrect? (I) The product $A_{2}B$ shows the properties of substances A and B.(II) The product will always have a fixed composition.
(III) The product so, cannot be classified as a compound. (IV) The product so, formed is an element.

• A. I, II and III
• B. II, III and IV
• C. I, III and IV
• D. I, II, and IV

Answer 1

Answer: (C)

I, III and IV

$Rkn$ is similar to

$2H_2+O_2\rightleftharpoons 2H_{2}O$

Now,

$H_{2}O$ doesnt show of either $H_2$ or $O_2$

$\therefore I$ is incorrect

$II$ is correct as product is specfic

$IV,III$ is ine as product formed is a compare