The p-Block Elements - Online Test
Q1. Which of the following is prepared by cyanamide process?
Answer : Option D
Explaination / Solution:
Q2. Ozone can be detected by using
Answer : Option A
Explaination / Solution:
Ozone is detected by using Hg.
Q3. Which of the following oxides reacts with both HCl and NaOH?
Answer : Option B
Explaination / Solution:
ZnO is an amphroteric oxide.
Q4. Name the gas whose formula was established by Sorret.
Answer : Option C
Explaination / Solution:
Sorret established formula of ozone.
Q5. Which colour is given by CuSO4 with ammonia?
Answer : Option A
Explaination / Solution:
Q6. N2O3 is
Answer : Option B
Explaination / Solution:
Q7. Which of the following is Paramagnetic?
Answer : Option D
Explaination / Solution:
NO is paramagnetic. Its unpaired electron is present in antibonding orbital.
Q8. Laughing gas is soluble in
Answer : Option A
Explaination / Solution:
N2O is soluble in water.
Q9. Which is used to produce smoke screens?
Answer : Option B
Explaination / Solution:
Calcium phosphide is used to produce smoke screen.
Q10. In XeO3 and XeF6 the oxidation state of Xe is
Answer : Option C
Explaination / Solution:
Xe is oxidation state of +6.
