Which one of the following is the correct order of size of othe iodine specifies?
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⁻ > […]
Easy
Which electronic configuration of an element has abnormally high difference
Which electronic configuration of an element has abnormally high difference between second and third ionization energy ?
Options
(a) I s², 2s², 2p⁶, 3s¹ (b) I s², 2 s², 2 p⁶, 3s¹ 3 […]
What is the dominant intermolecular force or bond that must be overcome
What is the dominant inter molecular force or bond that must be overcome in converting liquid CH₃OH to a gas?
Options
(a) Dipole-dipole interaction (b) Covalent bonds (c) London dispersion force (d) Hydrogen […]
One would expect proton to have very large
One would expect proton to have very large
Options
(a) Charge (b) Ionization potential (c) Hydration energy (d) Radius
Correct Answer:
Hydration energy
Explanation:
Proton (H+) being very small in size wouldhave very […]
Least voltage hydrogen halide is
Least voltage hydrogen halide is
Options
(a) HF (b) HCl (c) HI (d) HBr
Correct Answer:
HI
Explanation:
As the size of halogen atom increases, the boiling point of hydrogen halides increases. However, […]
A no. of ionic compounds, e.g., AgCl, CaF₂, BaSO₄ are insoluable in water
A no. of ionic compounds, e.g., AgCl, CaF₂, BaSO₄ are insoluable in water. This is because
Options
(a) ionic compounds do not dissolve in water (b) water has a high dielectric constant (c) […]
Four diatomic species are listed below. Identilfy the correct order in which
Four diatomic species are listed below. Identilfy the correct order in which the bond order is increasing in them:
Options
(a) NO < O₂⁻ < C₂²⁻ < He₂⁺ (b) O₂⁻ < NO < […]
Elements of which of the following groups will form anions most readily ?
Elements of which of the following groups will form anions most readily ?
Options
(a) Oxygen family (b) Nitrogen family (c) Halogens (d) Alkali metals
Correct Answer:
Halogens
Explanation:
Electron affinity values are […]
Which contains both polar and non-polar covalent bonds?
Which contains both polar and non-polar covalent bonds?
Options
(a) NH₄Cl (b) H₂O₂ (c) HCN (d) CH₄
Correct Answer:
H₂O₂
Explanation:
In H₂O₂, O–O bond is non-polar while O–H bond is polar.
Which one of the following moleculescontains no π bond?
Which one of the following molecules contains no π bond?
Options
(a) H₂O (b) SO₂ (c) NO₂ (d) CO₂
Correct Answer:
H₂O
Explanation:
All the molecules have O atom with lone pairs, but […]