The p-Block Elements - Online Test
Q1. The structure of ClF3 is
Answer : Option B
Explaination / Solution:
CN=0.5(V+M-C+A)
For ClF3 . CN= 5 so hyb is sp3d . Structure is trigonal bipyramidal.
Q2. Iodine is liberated from KI solution when treated with
Answer : Option D
Explaination / Solution:
Cu_2+ will reduce to Cu + and I- will oxidize to I2.
Q3. Xenondifluoride is
Answer : Option B
Explaination / Solution:
CN=0.5(V+M-C+A) For XeF_2 CN = 5 so shape will be linear and structure will be trigonal pyramidal.
Q4. Ammonia is used in detection of
Answer : Option D
Explaination / Solution:
Copper ions react with NH3 to form a blue color complex.
Q5. Laughing gas is
Q6. A metal X on heating in nitrogen gas gives Y. Y on treatment with water gives a colourless gas which when passed through copper sulphate solution gives a blue colour. Y is
Answer : Option B
Explaination / Solution:
Mg3N2 reacts with water to evolve NH_3. Which reacts with copper ion to form blue color complex.
Q7. The reagent used to distinguish between H2O2 and O3 is
Answer : Option B
Explaination / Solution:
H2O2 can decolorize the color of KMnO4 .
Q8. Which of the following is soluble in turpentine oil?
Answer : Option D
Explaination / Solution:
Oxygen is soluble in turpentile oil.
Q9. The crystals of ferrous sulphate on heating give
Answer : Option D
Explaination / Solution:
FeSO4 on heating gives Fe2O3+SO2+SO3+H2O.
Q10. When chlorine is passed through concentrated hot solution of KOH, the compound formed is
