Gold is known to be the most malleable metal, capable of being drawn into extremely thin sheets.

Sodium reacts vigorously with water to produce sodium hydroxide and hydrogen gas.

Sodium reacts vigorously with water at room temperature, producing sodium hydroxide and hydrogen gas.

Mercury is the only metal that is liquid at room temperature.

Sodium is a highly reactive metal, especially with water, compared to the other metals listed.

Silver is the best conductor of electricity among metals due to its high electron mobility.

Aluminum is widely used in aircraft manufacturing because of its lightweight and strength.

Tin is commonly used in making alloys, such as bronze when combined with copper.

Copper is widely used in electrical wiring due to its excellent conductivity.

Sodium reacts vigorously with water to produce sodium hydroxide and hydrogen gas.

Regular calibration of instruments can help reduce zero error by ensuring that the instrument reads zero accurately.

Vasectomy is a surgical procedure that provides a permanent form of contraception for males.

Filtration is a physical separation method and does not identify chemical groups, unlike the other methods listed.

Dialysis is used to purify colloidal solutions by allowing the solvent and small solutes to pass through a semi-permeable membrane while retaining the colloidal particles.

Electrophoresis is used to stabilize colloidal solutions by applying an electric field to separate charged particles.

All of the mentioned microbes can be involved in fermentation processes, but bacteria and fungi are the most common.

Lactobacillus is the primary bacterium used in the fermentation process to produce yogurt.

Fungi, particularly the genus Penicillium, are used in the production of antibiotics like penicillin.

Rhizobium is a bacterium that forms symbiotic relationships with legumes and is used in biofertilizers for nitrogen fixation.

Bacteria are commonly used in the production of biofuels through fermentation processes.

Genetically modified bacteria are used in the production of insulin for diabetes treatment.

Lactobacillus is the primary bacterium used in the fermentation of milk to produce yogurt.

According to the Aufbau principle, the σ1s molecular orbital is filled first as it has the lowest energy.

σ2s is lower in energy than the 2p atomic orbitals.

Ozone (O3) exhibits resonance due to the delocalization of electrons.

H2O has two bonding pairs and two lone pairs, leading to a bent molecular geometry.

H2O has two bonding pairs and two lone pairs, leading to a bent molecular geometry.

Li2 has a bond order of 1, calculated as (2 bonding electrons - 0 antibonding electrons)/2 = 1.

N2 has a bond order of 2, calculated as (number of bonding electrons - number of antibonding electrons)/2 = (10-6)/2 = 2.

O2 has a bond order of 2, while N2 has a bond order of 3, so none have a higher bond order than N2.