19. The rate expression for a particular reaction is rate = k[A]2 [B]. If the initial concentration of B is increased from 0.1 M to 0.4 M, the initial rate will increase by which of the following factors? (A) 2 (B) 4 (C) 8 (D) 16 (E) none of these

7. Which of the following statements is incorrect? (A) NF3 is a polar molecule. (B) The hybridization of the central atom is sp3 in ? (C) According to the molecular orbital model, the bond order of P2 molecule is three. (D) A material is made from Al, Ga, and As. The mole fraction of each element is 0.25, 0.26, and 0.49, respectively. This material would be an p-type semiconductor. (E) none of these

19. The rate expression for a particular reaction is rate = k[A]2 [B]. If the initial concentration of B is increased from 0.1 M to 0.4 M, the initial rate will increase by which of the following factors?
(A) 2
(B) 4
(C) 8
(D) 16
(E) none of these

相關試題

相關試卷