NEETChemistrySome Basic Concepts of Chemistry
Select the correct option for ( ( NH ₄ )₃ PO ₄ ). (A) Ratio of number of oxygen atom to number of hydrogen atom is (1: 3 ). (B) Ratio of no. of cation to no. of anion is (3: 1 ). (C) Ratio of no. of g -atom of nitrogen to g -atom of oxygen is (3: 2 ). (D) Total no. of atoms in one mole of ( ( NH ₄ )₃ 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, O ) and (12, H ) gives a ratio of (1: 3 ). - Correct. (B) Cations to anions ratio is 3:1: - (3 NH ₄⁺ )and (1 PO ₄³⁻ ) 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 ~N +12 H +1 P +4 O =20 ) - Correct.