Which of the four tubes containing following chemicals show the brisk effervescence when dilute acetic acid is added to them ?

D) i, ii and iii

Correct option is  A) weak acid

D) a → iv, b → i, c → ii, d → iii

Correct option is  A) 5 -10 %

D) All the test tubes

C) formation of clear and homogeneous solution

The correct answer is (D) malate dehydrogenase

A) hydrogen gas and iron chloride are formed

Correct Answer - Yellow

Correct Answer - B Iron is an element and rust is a compound of iron in which iron does not retain its properties and hence rust does not liberate hydrogen gas...