A) HFO₂ B) HFO, C) HFO D) HF 20. What is the formal charge on Sulfur in the best lewis structure for SCN¹ (thiocynate) ion? A)-1 B) 0 C) 1 D) 2

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inorganic chemistry, pleaseeee solve questionnn 20

### General Chemistry Multiple-Choice Questions

#### 18. Which one of the following compounds is paramagnetic?
- A) NO
- B) N₂O₄
- C) N₂O₃
- D) N₂O

#### 19. The chemical formula of fluoric acid is:
- A) HFO₂
- B) HFO₃
- C) HFO
- D) HF

#### 20. What is the formal charge on Sulfur in the best Lewis structure for SCN⁻ (thiocyanate) ion?
- A) -1
- B) 0
- C) 1
- D) 2

#### 21. Which one of the following is an ionic compound?
- A) Br₂
- B) BeCl₂
- C) CaCO₃
- D) PF₅

#### 22. The oxidation state of chromium in [Cr(C₂O₄)₂(OH)]²⁻ is:
- A) 3
- B) 4
- C) 6
- D) 7

#### 23. Which name-formula combination is NOT correct?
- A) [Co(NH₃)₄(OH₂)](SO₄) tetraammineaquadiocobalt(III) sulfate
- B) [Ni(CO)₄] tetracarbonyl nickel(0)
- C) Ca[PtCl₄] calcium tetrachloroplatinate(II)
- D) [Mn(CN)₅]²⁻ pentacyanomanganate(II) ion

#### 24. The hybridization on the central atom in NO⁺ is:
- A) sp³
- B) sp²
- C) sp³d
- D) sp

#### 25. Which of the following is an ionic hydride?
- A) PH₃
- B) HI
- C) H₂S
- D) KH

#### 26. A chemical bond formation that involves the complete transfer of electrons between atoms is:
- A) covalent bond
- B) partial covalent bond
- C) metallic bond
- D) ionic bond

### Detailed Explanation of Graphs/Diagrams
There are no graphs or diagrams included in the provided text. 

This set of multiple-choice
Transcribed Image Text:### General Chemistry Multiple-Choice Questions #### 18. Which one of the following compounds is paramagnetic? - A) NO - B) N₂O₄ - C) N₂O₃ - D) N₂O #### 19. The chemical formula of fluoric acid is: - A) HFO₂ - B) HFO₃ - C) HFO - D) HF #### 20. What is the formal charge on Sulfur in the best Lewis structure for SCN⁻ (thiocyanate) ion? - A) -1 - B) 0 - C) 1 - D) 2 #### 21. Which one of the following is an ionic compound? - A) Br₂ - B) BeCl₂ - C) CaCO₃ - D) PF₅ #### 22. The oxidation state of chromium in [Cr(C₂O₄)₂(OH)]²⁻ is: - A) 3 - B) 4 - C) 6 - D) 7 #### 23. Which name-formula combination is NOT correct? - A) [Co(NH₃)₄(OH₂)](SO₄) tetraammineaquadiocobalt(III) sulfate - B) [Ni(CO)₄] tetracarbonyl nickel(0) - C) Ca[PtCl₄] calcium tetrachloroplatinate(II) - D) [Mn(CN)₅]²⁻ pentacyanomanganate(II) ion #### 24. The hybridization on the central atom in NO⁺ is: - A) sp³ - B) sp² - C) sp³d - D) sp #### 25. Which of the following is an ionic hydride? - A) PH₃ - B) HI - C) H₂S - D) KH #### 26. A chemical bond formation that involves the complete transfer of electrons between atoms is: - A) covalent bond - B) partial covalent bond - C) metallic bond - D) ionic bond ### Detailed Explanation of Graphs/Diagrams There are no graphs or diagrams included in the provided text. This set of multiple-choice
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