When two atoms of chlorine combine to form one molecule of chlorine gas, the energy of molecule
Options
(a) equal to that of separate atoms (b) lower than that of separate atoms (c) […]
Alkali metals in each period have
Options
(a) smallest size (b) lower ionisation potential (c) highest ionisation potential (d) highest electronegativity
Correct Answer:
lower ionisation potential
Explanation:
Alkali metals have lowest ionisation potential […]
The lattice energy order for lithium halide is
Options
(a) LiF > liCl > LiBr > LiI (b) LiCl > LiF > LiBr > LiI (c) LiBr > LiCl > LiF > LiI […]
Bhor’s theory is applicable to
Options
(a) He (b) Li²⁺ (c) He²⁺ (d) None of these
Correct Answer:
Li²⁺
Explanation:
Bohr’s theory is applicable to H-like species (e.g., Li²⁺).
The spectrum of He is expected to be similar to
Options
(a) H (b) Li⁺ (c) Na (d) He⁺
Correct Answer:
Li⁺
Explanation:
Both He and Li⁺ contain 2 electrons each therefore their […]
Which of the following order of element is wrong?
Options
(a) NH₃ < PH₃< AsH₃– Acidic (b) Li < Be < B < C – First IP (c) Al₂O₃< MgO < Na₂O < […]
In the periodic table going down in fluorine group
Options
(a) stability of ohydrides will increase (b) ionic radii will increase (c) electronegativity will increase (d) IE will increase
Correct Answer:
ionic radii […]
I₄O₉ is a/an
Options
(a) Ionic compound (b) Covalent compound (c) Coordinate compound (d) double salt
Correct Answer:
ionic compound
Explanation:
I₄O₉ is actually I(IO₃)₃. It is an ionic compound. I(IO₃)₃ ⇌ I³⁺ […]
XeF₂ is isostructural with:
Options
(a) ICl₂⁻ (b) SbCl₃ (c) BaCl₂ (d) TeF₂
Correct Answer:
ICl₂⁻
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting […]
Which one of the following is the correct order of size of othe iodine specifies?
Options
(a) I > I⁺ > I⁻ (b) I > I⁻ > I⁺ (c) I⁺ > I⁻ > […]
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