please give an explanation for each :)

QUESTION 19 Which of the following is a true statement about a first-order reaction? Both ln[A] vs. t and 1/[A] vs, t will be linear. Neither ln[A] vs. t nor 1/[A] vs. t will be linear. ln[A] vs. t will be linear but not 1/[A] vs. t. 1/[A] vs. t will be linear but not ln[A] vs. t. QUESTION 20 Which of the following is a true statement about a second-order reaction? Both ln[A] vs. t and 1/[A] vs. t will be linear. Neither in [A] vs. t nor 1/[A] vs. t will be linear. ln[A] vs, t will be linear but not 1/[A] vs. t. 1/[A] vs. t will be linear but not In[A] vs. t