P Block MCQ For NEET (Oxoacids of Phosphorus) are very important for NEET, JEE as well as AIIMS exam. These P Block Elements Class 12 Important Questions will help you to score more marks. These P Block MCQ For NEET (Oxoacids of Phosphorus) will be very useful for those students who are preparing with complete devotion and hard work.
P Block MCQ For NEET (Oxoacids of Phosphorus)
1. How many P-H bonds does hypophosphorous acid contain?
a) 1
b) 2
c) 3
d) 4
Answer: 2
2. What is the basicity of pyrophosphoric acid?
a) Monobasic
b) Tribasic
c) Dibasic
d) Tetrabasic
Answer: Dibasic
3. What is the total number of atoms or groups surrounding each phosphorus atom in its oxoacids?
a) 5
b) 6
c) 3
d) 4
Answer: 4
4. What is the oxidation state of phosphorus in hypophosphoric acid?
a) +1
b) +2
c) +3
d) +4
Answer: +4
5. What is the temperature at which orthophosphoric acid forms pyrophosphoric acid?
a) 673 K
b) 523 K
c) 423 K
d) 700 K
Answer: 523 K
6. Which of the following compounds contain phosphorus with an oxidation state of +5?
a) Peroxodiphosphoric acid
b) Hypophosphorous acid
c) Orthophosphorous acid
d) Hypophosphoric acid
Answer: Peroxodiphosphoric acid
7. Orthophosphorous acid can be made from phosphorous trioxide.
a) True
b) False
Answer: True
8. Phosphorus does not form oxoacids.
a) True
b) False
Answer: False
9. What is the range of the oxidation states shown by phosphorus in its oxoacids?
a) +1 to +3
b) +2 to +4
c) +1 to +2
d) +1 to +5
Answer: +1 to +5
10. Which of the following is incorrect about Hypophosphorous acid?
a) It is also called phosphonic acid
b) The oxidation state of phosphorus is +1
c) It is monobasic
d) It is represented by the formula H3PO2
Answer: It is also called phosphonic acid
Categories: P Block Elements