NEET EXAM QUIZ

Q.1 In the structure of ClF₃, the number of lone pairs of electron on central atom 'Cl' is

       A.Four 

       B.Two

       C.One

       D.Three

Explanation:-Chlorine trifluoride has 10 electrons around the central chlorine atom. This means there are five electron pairs arranged in a trigonal bipyramidal shape with a 175° F-Cl-F bond angle. There are two equatorial lone pairs making the final structure T-shaped.
Answer:-B

Q.2 Which of the following statements is not true for halogens ?
       A.All but fluorine show positive oxidation states.
       B.All are oxidizing agents.
       C.All form monobasic oxyacids.
       D.chlorine has the highest electron-gain enthalpy.

Answer:-A

Q.3 Which one of the following elements is unable to form MF₆³⁻ ion..
       A.B
       B.Al
       C.Ga
       D.In

Answer:-A