Chemistry
In the compound magnesium nitride (Mg3N2):
P — Mg is trivalent, N is divalent.
Q — Mg is divalent. N is trivalent.
R — Mg is divalent, N is divalent.
Which of the statements given above is/are true?
Only P
Only Q
Only R
Both P and Q
Related Questions
A chemical equation is always balanced to satisfy the conditions of :
Law of constant proportions.
Gay Lussac's law
Law of conservation of mass
Law of mass action.
One "μ" stands for :
- One atom of any element
- 1/12th of hydrogen atom
- An atom of carbon (C-12)
- 1/12th the mass of carbon atom (C-12).
Copper shows variable valency and forms two different compounds with oxygen — Cu2O and CuO.
P — A is cuprous oxide, B is cupric oxide.
Q — A is cupric oxide, B is cuprous oxide.
R — A is copper (I) oxide, B is copper (II) oxide.
Only P
Only Q
Only R
Both P and R
The figure given below shows the molecule of an element, where 'a' denotes the atom with atomic mass 32.
P — Element is tetratomic with molecular mass 128.
Q — Element is octatomic with molecular mass 256.
R — Element is crown-shaped with molecular mass 256.
Only P
Only Q
Only R
Both P and R