NEET
- Exam
- NEET
- Subject
- Chemistry
- Chapter
- Some Basic Concepts of Chemistry
NEET · Chemistry · Some Basic Concepts of Chemistry
Select the correct option for ((NH_4)_3 PO_4). (A) Ratio of number...
Select the correct option for (\left(\mathrm{NH}_4\right)_3 \mathrm{PO}_4).
(A) Ratio of number of oxygen atom to number of hydrogen atom is .
(B) Ratio of no. of cation to no. of anion is .
(C) Ratio of no. of g -atom of nitrogen to g -atom of oxygen is .
(D) Total no. of atoms in one mole of (\left(\mathrm{NH}_4\right)_3 \mathrm{PO}_4) is 20.
Options
- AA, B both are correct.
- BA, B & D are correct.
- CC & D both are correct.
- DB & C both are correct.
Correct answer
A. A, B both are correct.
Step-by-step solution
(A) Oxygen to hydrogen ratio is 1:3:
(4, ) and (12, ) gives a ratio of .
- Correct.
(B) Cations to anions ratio is 3:1:
- (3 \mathrm{NH}}_{4}^{+})and (1 \mathrm{PO}}_{4}^{3-}) gives a ratio of 3:1.
- Correct.
(C) Nitrogen to oxygen ratio is 3:2:
- There are 3 nitrogen and 4 oxygen atoms, so the ratio is 3:4.
- Incorrect.
(D) Total atoms in one mole is 20:
- Total atoms =
(3 12 1 4 20)
- Correct.