14.All the following groups are activating ortho, para directors when attached to a benzene ring EXCEPT O (A) (B)－OCH3 (C)－C1 (D)－N(CH3)2 (E)None of these

14.All the following groups are activating ortho, para directors when attached to a benzene ring EXCEPT O
(A)
(B)－OCH₃
(C)－C1
(D)－N(CH₃)₂
(E)None of these

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統計： A(1), B(0), C(2), D(0), E(1) #2348045

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2025/09/03

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ortho / para 定向 ABCD...

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25. Suppose the hypothetical set of quantum numbers:n = 1, 2, 3, ……l = 0, 1, 2, 3, …… , n–1mₗ = 1s = 1/2, –1/2then which of the following statements is not correct?(A) There is one s orbital, one p orbital, and one d orbital.(B) The atomic number of the first element in the d orbital-filler is 12.(C) There are two transition elements in the first period.(D) The atomic number of the first inert gas is 2.(E) If one element has the atomic number 14, then its electron configuration is 1s²2s²2p³3s²3p².

14.All the following groups are activating ortho, para directors when attached to a benzene ring EXCEPT O
(A)
(B)－OCH₃
(C)－C1
(D)－N(CH₃)₂
(E)None of these

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14.All the following groups are activating ortho, para directors when attached to a benzene ring EXCEPT O(A)(B)－OCH3(C)－C1(D)－N(CH3)2(E)None of these

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相關試題

相關試卷

14.All the following groups are activating ortho, para directors when attached to a benzene ring EXCEPT O
(A)
(B)－OCH₃
(C)－C1
(D)－N(CH₃)₂
(E)None of these