Unit III: p-Block Elements II - Online Test
Q1. In which of the following ,
NH3 is not used?
Answer : Option A
Explaination / Solution:
No Explaination.
Q2. Which is true regarding nitrogen?
Answer : Option D
Explaination / Solution:
No Explaination.
Q3. An element belongs to group 15 and 3 rd period of the periodic table, its electronic configuration would be
Answer : Option D
Explaination / Solution:
No Explaination.
Q4. Solid (A) reacts with strong aqueous NaOH liberating a foul smelling gas(B) which spontaneously burn in air giving smoky rings. A and B are respectively
Answer : Option B
Explaination / Solution:
No Explaination.
Q5. In the brown ring test, brown colour of the ring is due to
Answer : Option B
Explaination / Solution:
No Explaination.
Q6. On hydrolysis, PCl3
gives
Answer : Option A
Explaination / Solution:
No Explaination.
Q7. P4O6
reacts with cold water to give
Answer : Option A
Explaination / Solution:
No Explaination.
Q8. The basicity of
pyrophosphorous acid ( H4P2O5) is
Answer : Option B
Explaination / Solution:
No Explaination.
Q9. The molarity of given orthophosphoric acid solution is 2M. its normality is
Answer : Option A
Explaination / Solution:
No Explaination.
Q10.
Assertion : bond dissociation energy of fluorine is greater than chlorine gas
Reason: chlorine has more electronic repulsion than fluorine
Answer : Option D
Explaination / Solution:
Both assertion and reason are wrong. The converse is true.
