Among the halogens the rare element is________________?
(A) Fluorine
(B) Chlorine
(C) Astatine
(D) Iodine
Which one of the following is the weakest acid in water__________________?
(A) HF
(B) HCI
(C) HBr
(D) HI
Which of the following statements is incorrect about fluorine_______________?
(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
The colour of chlorine gas is_______________?
(A) pale yellow
(B) freenish yellow
(C) reddish brown
(D) grayish black
Which one of the following halogens is present in Teflon________________?
(A) I2
(B) Br2
(C) Cl2
(D) F2
Indicate the correct statement__________________?
(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
Photographic plates are coated with a thin film of _________________?
(A) AgNO3
(B) AgI
(C) AgCl
(D) AgBr
Which of the following is not use of compounds of Fluorine________________?
(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