The emission spectrum of hydrogen is a line spectrum, consisting of discrete lines corresponding to specific wavelengths of light emitted by electrons transitioning between energy levels.

An ideal fluid is defined as being incompressible and non-viscous, meaning it has no internal friction.

Viscosity is the measure of a fluid's resistance to flow. Higher viscosity means the fluid flows less easily.

Boyle's Law states that the pressure of a gas is inversely proportional to its volume at constant temperature.

Lattice energy is defined as the energy released when gaseous ions combine to form a solid ionic compound.

A Light Emitting Diode (LED) is based on the principle of a p-n junction, emitting light when current flows through it.

All of the above devices operate on the principle of electromagnetic induction.

An electric motor uses electromagnetic induction to convert electrical energy into mechanical energy.

An electric motor operates based on the magnetic effects of current, converting electrical energy into mechanical energy.

A transformer uses the principle of electromagnetic induction to transfer electrical energy between circuits.

An electric motor operates on the principle of electromagnetism, converting electrical energy into mechanical energy.

Malaria is caused by protozoan parasites of the genus Plasmodium.

Type 1 Diabetes is characterized by the autoimmune destruction of insulin-producing beta cells in the pancreas.

Measles is characterized by a distinctive rash along with other symptoms.

Both Bacteria and Archaea are domains that include primarily unicellular and prokaryotic organisms.

Both Bacteria and Archaea are domains that include prokaryotic organisms, which lack a nucleus.

Tropical rainforests have the highest biodiversity among ecosystems due to their warm climate and abundant rainfall.

Tropical rainforests are known for their high biodiversity due to favorable climatic conditions.

Tropical rainforests are known for having the highest biodiversity among ecosystems.

Neodymium (Nd) is a lanthanide element, while the others belong to different series.

Nitrogen can form a triple bond, as seen in N2, where three pairs of electrons are shared between the two nitrogen atoms.

Lead does not form a stable +4 oxidation state; it is more stable in the +2 state.

Lead does not form a stable oxide in the same way as the other elements listed.

The electron configuration [Ne]3s²3p⁵ corresponds to Chlorine, which has 17 electrons.

Magnesium has the electronic configuration [Ne]3s².

Lithium (Li) has the highest ionization energy among the alkali metals due to its smaller atomic size.

Lithium (Li) has the highest melting point among the alkali metals due to its smaller size and stronger metallic bonding.

Uranium is an f-block element as it is part of the actinides series.

Bromine is a halogen, located in group 17 of the periodic table.

Sodium (Na) is an alkali metal, while Magnesium (Mg), Calcium (Ca), and Barium (Ba) are alkaline earth metals.