Punjab 12th Class Chemistry Chapter 5 Halogen and Noble Gases MCQs Test Online Punjab 12th Class Chemistry Chapter 5 Halogen and Noble Gases MCQs Test Online 1234567891011121314151617181920Show paginator Hide paginator Question 1 of 20Chemistry 1. Chlorine heptaxide (C1207) reacts with water to form:1.chloric acid2.Chlorine and oxygen3.hypochlorous acid4.perchloric acidQuestion 1 of 20Question 2 of 20 2. Which one is chlorous acid?1.HClO42.HCIO3.HClO34.HClO2Question 2 of 20Question 3 of 20 3. The anhydride of HCIO4 is:1.ClO22.Cl2O53.ClO34.Cl2O7Question 3 of 20Question 4 of 20 4. An element that has a high ionization energy and tends to be chemically inactive would most likely1.a noble gas2.a halogen3.an alkali metal4.a transition elementQuestion 4 of 20Question 5 of 20 5. Which is the strongest acid?1.HClO2 2.HC1O3 3.HCIO44.HCIOQuestion 5 of 20Question 6 of 20 6. Chlorine heptoxide (Cl2O7) reacts with water to form1.Chloric acid2.Chlorine and oxygen3.Hypochlorous acid4.Perchloric acidQuestion 6 of 20Question 7 of 20 7. Hydrogen bond is the strongest between the molecules of1.HBr 2.HI3.HF4.HClQuestion 7 of 20Question 8 of 20 8. The weakest oxyacid of Cl is?1.HClO32.HClO43.HCIO4.HClO2Question 8 of 20Question 9 of 20 9. The anhydride of HCIO is1.Cl2O52.CIO23.ClO24.Cl2O7Question 9 of 20Question 10 of 20 10. Which of the following hydrogen halides is liquid at room temperature1.HBr2.HF3.HI4.HClQuestion 10 of 20Question 11 of 20 11. Bleaching powder may be produced by passing chlorine over1.Hydrated calcium sulphate2.Calcium hydroxide3. Calcium carbonate4.Anhydrous calcium sulphateQuestion 11 of 20Question 12 of 20 12. Which halogen will react spontaneously with Au(s) to produce Au?1. Br22.F23.I24.Cl2Question 12 of 20Question 13 of 20 13. Iodine penta oxide, (I2O5) is used for the quantitative analyses of1.H2S2.CO3.CO24. I2Question 13 of 20Question 14 of 20 14. Bond angle in OF2 is1. 180°2.107°3.105°4.120°Question 14 of 20Question 15 of 20 15. Which of the following hydrogen halide is the weaker acid in solution?1.HBr2. HF3.HI4.HClQuestion 15 of 20Question 16 of 20 16. Which of the following elements form acidic oxide only?1.Sn2.Al3.Br4.CdQuestion 16 of 20Question 17 of 20 17. Which one is percholric acid?1.HClO22.HClO43.HClO34.HCIOQuestion 17 of 20Question 18 of 20 18. Which halogen occurs naturally in a positive oxidation state?1.Iodine2.Chlorine3.Bromine4.FluorineQuestion 18 of 20Question 19 of 20 19. Which of following is most acidic?1.SiO22.Cl2O3.SO24.Cl2O7Question 19 of 20Question 20 of 20 20. Which of the following represents the correct electronic configuration of the outem-yost energy level of an element of zero (VIIIA) group in the ground state?1. s2p22.s2p43.S2p54.s2p6Question 20 of 20 Loading... Test By Subject Punjab Test By Topics 12th Class Chemistry You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.