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Total questions: 15
Worksheet time: 8mins
Hydration energy of group 18 elements decreases down the group
Due to increase in value of melting point
Due to increase in number of electrons
Due to increase in Van der Waal's forces
Due to increase in size
Name any one poisonous gas which can be prepared from chlorine gas (mention "name" not formula)
(a)
Which of the following are required to give "XeF4"
Xe and F2 ( 1:20 ratio ) 873 K, 7 Bar
Xe and F2 (xenon in excess) 873 K, 7 Bar
Xe and F2 ( 4: 20 ratio ) 873 K, 7 Bar
Xe and F2 ( 1:5 ratio ) 870 K, 7 Bar
The first ionisation enthalpy of (a) is almost identical to xenon
Identify structure of "Bromic Acid"
Chlorine oxides ________ are highly reactive and tend to EXPLODE!!
Cl2O
ClO2
Cl2O6
Cl2O7
Cl3O7
Fluorine is present mainly as insoluble fluorides... NAME THEM! ( "Name" any one )
(a)
Which of the following is/are higher than expected for FLUORINE
ionisation enthalpy
bond dissociation enthalpy
electronegativity
electrode potential
melting point
Who discovered Chlorine?
Sheele
Scheele
Schele
Schelle
What is this called ?
"4HCl + O2 → 2Cl2 + 2H2O" (In presence of CuCl2)
Electrolytic process
Daycon's process
Deacon's process
Sheldon's process
"I am a greenish yellow gas with a pungent and SufFoCatInG odour, I can be liquefied easily to boil at 239K😇"
Who am I?
Iodine
Bromine
Fluorine
Chlorine
Acidic strength varies in the order
HI < HBr < HCl < HF
HF < HCl < HBr < HI
HF > HCl > HBr > HI
HI > HBr > HCl > HF
Who was the first one to prepare "HCl"?
Glauber
Davy
Scheele
Deacon
What is/are the oxidation states exhibited by halogens?
-1
+1
+3
+4
+5
Does hydrolysis of XeF6 lead to a redox reaction? (one word answer)
(a)
