Which of the following is a negatively charged bidentate ligand?
Cyano
Ethylene diamine
Acetato
Dimethyl glyoximato
In a transition series, with increase in atomic-number, the paramagnetism
increases gradually
decreases gradually
first increases to a maximum and then decreases
first decreases to a minimum and then increases
In chromite ore, the oxidation number of iron and chromium are respectively
+3, +2
+3, +6
+2, +6
+2, +3
An element with atomic number 21 is a
halogen
representative element
transition element
alkali metal
In chromite ore, the oxidation number of iron, and chromium are respectively
+3,+2
+3,+6
+2,+6
+2,+3
Mercury is a liquid metal because
it has a completely filled s orbital
it has a small atomic size
it has a completely filled d orbital that prevents d-d overlapping of orbitals
it has a completely filled d orbital that causes d-d overlapping