NEET Chemistry Questionbank

Excess reagent

Limiting reagent

Catalyst

Solvent

$\sqrt{2}\,\hbar$

$\sqrt{6}\,\hbar$

$2\hbar$

zero

$sp^3$, tetrahedral

$sp^3d^2$, octahedral

$sp^3d$, trigonal bipyramidal

$sp^2$, planar

$\Delta G > 0$

$\Delta G = 0$

$\Delta G < 0$

$\Delta H < 0$ always

Backward toward reactants

Forward toward ammonia

No shift occurs

Depends on catalyst only

Negative

Zero

Positive

Exactly 1 V

Colour

Refractive index

Colligative properties such as freezing-point depression

Density alone

The second electron is in a lower shell

$Na^+$ has a stable noble-gas (neon) configuration

Sodium atoms are very large

Sodium has a high electronegativity

Ethylene glycol

Hexamethylenediamine

Phenol

Styrene

Oxidation, making it permanent

Reduction, so the colour often returns on exposure to air

Dissolving the dye physically

Raising the pH of the fabric

$Cu^+$ has a filled $3d^{10}$ shell with no d-d transitions

$Cu^+$ is larger than $Cu^{2+}$

$Cu^{2+}$ absorbs red light by nuclear excitation

Water molecules are blue

Monodentate ligand

Hexadentate chelating ligand

Bridging ligand only

Neutral ligand

Hybridisation change

Hyperconjugation and inductive electron release

Heavier isotopes of carbon

Greater molar mass alone

Complete racemisation

Retention of configuration

Inversion of configuration (Walden inversion)

No stereochemical change

Primary amines only

Secondary amines only

Tertiary amines only

All amines equally