Which one of the following is not the use of graphite ?
(A) Lead pencils
(B) Abrasive
(C) Lubricant
(D) Electrode of electrolytic cell
Which of the halogen can displace other three elements ?
(A) Flourine
(B) Chlorine
(C) Iodine
(D) Bromine
Consider the following reaction- 3Cl2 + 6NaOH ? NaClO3 + 5NaCl + 3H2O This reaction is_______________?
(A) Displacement reaction
(B) Double displacement reaction
(C) Disproportionation reaction
(D) Reduction reaction
Consider the following reaction- 2KCIO3 + H2C2O4 + H2SO4 ? K2SO4 + 2H2O + 2CO2 + Oxide Which oxide of chlorine is produced in the above reaction ?
(A) Cl2O
(B) ClO2
(C) Cl2O6
(D) Cl2O7
Bromine can be liberated from KBr solution by the action of _______________?
(A) Iodine solution
(B) Chlorine
(C) NaCl
(D) Ki
The halogen having highest electron affinity is_____________________?
(A) Fluorine
(B) Chlorine
(C) Bromine
(D) Iodine
The halogen which reacts very slowly with halogen is________________?
(A) Fluorine
(B) Chlorine
(C) Bromine
(D) Iodine
The halogen which reacts spontaneously with gold (Au) to form Au+3 is ________________?
(A) F2
(B) Cl2
(C) Br2
(D) I2
The most powerful oxidizing agent among the halogens is__________________?
(A) F2
(B) Cl2
(C) Br2
(D) I2