961 Which of the following represents the correct electronic configuration of VII A group elements in the ground state ? Chemistry Medium Full question → A ns2p2 B ns2p4 C ns2p5 D ns2p6
962 Which one of the following is the weakest acid in water__________________? Chemistry Medium Full question → A HF B HCI C HBr D HI
963 Which of the following statements is incorrect about fluorine_______________? Chemistry Medium Full question → A fluorine is restricted to -1 oxidation state B fluorine follows octet rule and as well as extended octet rule C fluorine has lowest dissociation energy among the halogens D both B and C
964 The colour of chlorine gas is_______________? Chemistry Medium Full question → A pale yellow B freenish yellow C reddish brown D grayish black
965 Which is the paramagnetic oxide of chlorine ? Chemistry Medium Full question → A Cl2O7 B Cl2O6 C ClO2 D all
966 Which one of the following halogens is present in Teflon________________? Chemistry Medium Full question → A I2 B Br2 C Cl2 D F2
967 Indicate the correct statement__________________? Chemistry Medium Full question → A Cl2 is the strongest oxidizing agent B I2 is a volatile solid C Br2 is more reactive than Cl2 D Cl2 is insoluble in water
968 Photographic plates are coated with a thin film of _________________? Chemistry Medium Full question → A AgNO3 B AgI C AgCl D AgBr
969 Which of the following is not use of compounds of Fluorine________________? Chemistry Medium Full question → A SbF3 is used for manufacture of pottery B Sodium fluoroacetate is a rat poison C Cu F2 is used in ceramic industry D None of the above
970 Bleaching powder is not used for bleaching________________? Chemistry Medium Full question → A Cotton B Costly fabrics C Linen D Paper pulb
971 The chemical formula of sodium hypochlorite is________________? Chemistry Medium Full question → A NaCLO B NaClO2 C NaClO3 D NaClO4
972 Which of the halogen can displace other three elements ? Chemistry Medium Full question → A Flourine B Chlorine C Iodine D Bromine
973 Consider the following reaction- 3Cl2 + 6NaOH ? NaClO3 + 5NaCl + 3H2O This reaction is_______________? Chemistry Medium Full question → A Displacement reaction B Double displacement reaction C Disproportionation reaction D Reduction reaction
974 Consider the following reaction- 2KCIO3 + H2C2O4 + H2SO4 ? K2SO4 + 2H2O + 2CO2 + Oxide Which oxide of chlorine is produced in the above reaction ? Chemistry Medium Full question → A Cl2O B ClO2 C Cl2O6 D Cl2O7
975 Bromine can be liberated from KBr solution by the action of _______________? Chemistry Medium Full question → A Iodine solution B Chlorine C NaCl D Ki
976 The halogen having highest electron affinity is_____________________? Chemistry Medium Full question → A Fluorine B Chlorine C Bromine D Iodine
977 The halogen which reacts very slowly with halogen is________________? Chemistry Medium Full question → A Fluorine B Chlorine C Bromine D Iodine
978 The halogen which reacts spontaneously with gold (Au) to form Au+3 is ________________? Chemistry Medium Full question → A F2 B Cl2 C Br2 D I2
979 The most powerful oxidizing agent among the halogens is__________________? Chemistry Medium Full question → A F2 B Cl2 C Br2 D I2
980 Vander Waals forces are stronger in_______________? Chemistry Medium Full question → A F2 B Cl2 C Br2 D I2