General Science MCQ – 107 (Chemistry)

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1. Which of the following species has 120^o angles?
(A) NCI₃
(B) PH₃
(C) CIF₃
(D) BCI₃

2. Which of the following species has a trigonal planar shape?
(A) NO₃^–
(B) CO₂
(C) N₃
(D) NO₂^–

3. Which of the following has a linear shape?
(A) NO₂^–
(B) NO₂⁺
(C) O₃
(D) SO₂

4. If MX6 is a regular octahedral molecule, then hoe many X-M-X bonds are 180^o?
(A) 2
(B) 4
(C) 3
(D) 6

5. Find the molecule I which the central atom is having one lone pair of electrons?
(A) NH₃
(B) PCI₅
(C) H₂O
(D) CH₄

6. In BrF3, lone pairs are present at the equatorial positions. This is to minimize?
(A) bp-bp repulsion only
(B) lp-lp repulsion only
(C) lp-bp repulsion only
(D) Both B and C

7. Find the species with a maximum bond angle?
(A) NH₄^–
(B) SCI₂
(C) NH₃
(D) PCI₃

8. XeF₆ is?
(A) Distorted octahedral
(B) Tetrahedral
(C) Octahedral
(D) Planar

9. Number of bond pair and lone pair electrons present on N atom in NO₃^– are?
(A) 3, 1
(B) 4, 0
(C) 2, 2
(D) 1, 3

10. Fid the molecule with the latest bond angle?
(A) BeF₂
(B) CH₄
(C) NH₃
(D) N₂O

General Science MCQ – 108 (Biology)