題庫堂
檢索
題庫堂
首頁
數學
英文學習
政治學
統計學
經濟學
藥理學
中醫藥物學
財政學
法學知識
公共行政
警察學
BI規劃師
財務管理
公共衛生學
工程經濟學
電力電子學
當前位置:
首頁
14. In the best Lewis structure for NO +, what is the formal charge on the N atom?(A) -1 (B) 0 (C) +
問題詳情
14. In the best Lewis structure for NO +, what is the formal charge on the N atom?
(A) -1
(B) 0
(C) +1
(D) +2
參考答案
答案:
[無官方正解]
難度:
計算中
-1
書單:
沒有書單,新增
上一篇 :
12. Assuming the octet rule is obeyed, how many covalent bonds will an oxygenatom form to give a for
下一篇 :
15. Which of the elements listed below is most likely to exhibit an expanded octet inits compounds?(
資訊推薦
16. Give the number of lone pairs around the central atom and the moleculargeometry of SCl2.(A) 0 lo
17. Use VSEPR theory to predict the geometry of the BF3 molecule.(A) linear (B) bent (C) trigonal pl
18. Which one of the following molecules has tetrahedral geometry?(A) XeF4 (B) BF3 (C) AsF5 (D) CF4
19. Which one of the following molecules has a non-zero dipole moment?(A) BeCl2 (B) Br2 (C) BF3 (D)
20. Which one of the following molecules is polar?(A) PBr5 (B) CCl4 (C) BrF5 (D) XeF2
21. What is the strongest type of intermolecular force present in NH2CH3?(A)dispersion (B) dipole-di
22. Identify the compound that does not have hydrogen bonding.(A) (CH3)3N (B) H2O (C) CH3OH (D) HF
23. What is the type of intermolecular force for dissolving NaCl in H2O?(A)dispersion (B) dipole-dip
24. What is the type of intermolecular force for dissolving Br2 in H2O?(A)dispersion (B) dipole-dipo
25. Which of the following acids will have the strongest conjugate base?(A)HCl (B) HClO4 (C) HNO3 (D
26. Which one of the following salts, when dissolved in water, produces the solutionwith the lowest
27. Which of the following is a Lewis acid?(A) BBr3 (B) CCl4 (C) NH3 (D) CHBr3
2. Which attribute of biological membrane is NOT correct?(A) Membranes consist mainly of lipids and
3. Which molecule below is the key regulator of membrane fluidity in animals?(A) Glycolipids (B) Fat
4. Which description is NOT correct?(A) A nucleic acid consists of four kinds of bases linked to a s
5. Which of the following force does NOT exist in the quaternary structure of theprotein?(A) Electro
6. What kind of protein secondary structure is silk (fibroin) made of?(A) α-helix (B) β-sheet (C) β-
7. What type of inhibitor does penicillin belong to?(A) Competitive inhibition (B) Uncompetitive inh
8. Which enzyme reactions do NOT obey Michaelis–Menten kinetics?(A) Ping-pong reactions (B) Sequenti
9. Which of the following is least likely to cross a cellular membrane withouttransporters or channe
10. Which description is NOT correct?(A) Cyclic AMP stimulates the phosphorylation of many target pr
11. Which description is NOT correct?(A) The insulin receptor is a dimer that closes around a bound
12. What is a prion which cause mad cow disease?(A) Misfolded DNA (B) Misfolded RNA (C) Misfolded pr
13. Which of the following is NOT high energy molecule in cellular respiration?(A) ATP (B) AMP (C) N
14. Which of the following is NOT a second messenger molecule?(A) Estrogen (B) Inositol 1,4,5-trisph