Question

In the presence of acid, the initial concentration of cane-sugar was reduced from 0.2 M to 0.1 M in 5 hrs and to 0.05 M in 10 hrs. The reaction must be of :

• A. Zero order
• B. First order
• C. Second order
• D. Fractional order

Answer 1

The correct option is B First order

$t_{\frac{1}{2}}=\frac{1}{(C_0{)}^{n-1}}$ $\therefore$ reaction is of the first order