Question

The minus sign in rate $= \frac{d\lbrack A\rbrack}{dt}$indicates the _____ in concentration of the _____with time. The rate of a reaction is always _____ quaintly. The rate of reaction increases with ______ in concentration of reactants, the blanks in the questions corresponds to

• A. Decrease, products, positive, increase
• B. Increase, reactants, negative, decrease
• C. Decrease, reactants , positive, increase
• D. Increase, products, positive, increase

Answer 1

Answer: (C)

Decrease, reactants , positive, increase

Answer 2

The concentration of reactants decrease with time. The rate of reaction is a positive quantity. The rate of reaction increase with increase in concentration of reactants.