Punjab 9th Class Chemistry Chapter 4 Structure of Molecules Mcqs Test Online Punjab 9th Class Chemistry Chapter 4 Structure of Molecules Punjab 9th Class Question 1 of 9Chemistry 1. Identify the covalent compound H₂O KFNaCl MgO Question 1 of 9Question 2 of 9 2. Phosphorus belongs to third period of Group VA. How many electrons it needs to complete its valence shell. 4 52 3 Question 2 of 9Question 3 of 9 3. In the formation of AIF₃, aluminum atom loses ___________ electrons. 3 1 42 Question 3 of 9Question 4 of 9 4. Which of the following atoms obey duplet rule? H₂ N₂ O₂ F₂ Question 4 of 9Question 5 of 9 5. Which of the following atoms will not form cation or anion. B (Atomic No. 17) C (Atomic No. 18) A (Atomic No. 16) D (Atomic No. 19)Question 5 of 9Question 6 of 9 6. Which of the following is not true about the formation of Na₂S: Each sulphur atom gains one electron Sodium forms cation Each sodium atom loses one electron Sulphur forms anion Question 6 of 9Question 7 of 9 7. Which of the following atoms will form cation. Atomic Number/17 Atomic Number/15Atomic Number/20 Atomic Number/18 Question 7 of 9Question 8 of 9 8. Which of the following atoms will form an ion of charge -2? Atomic Number/12 Mass Number/24 Atomic Number/14 Mass Number/28 Atomic Number/10 Mass Number/20Atomic Number/8 Mass Number/8 Question 8 of 9Question 9 of 9 9. Silicon belongs to Group IVA. It has ___________ electrons in the valence shell 4 2 3 6Question 9 of 9 Loading... Test By Subject Punjab Test By Topics 9th Class Chemistry You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.