question What is the primary purpose of internal calibration standards in analytical chemistry

The equation for calculating the standard enthalpy change (ΔH°) in a reaction is given by:

A. ΔH° = Σ (bond energies formed) - Σ (bond energies broken)
B. ΔH° = Σ (bond energies broken) - Σ (bond energies formed)
C. ΔH° = Σ (bond energies broken) * Σ (bond energies formed)
D. ΔH° = Σ (bond energies broken) / Σ (bond energies formed)

What is the pH range of neutral solutions?

A. 7
B. 0 to 6
C. 8 to 14
D. 1 to 7

Which technique measures the movement of charged particles in an electric field to separate and identify ions in a sample?

A. Electrophoresis
B. Chromatography
C. Spectroscopy
D. Calorimetry

The process of heat transfer through the movement of fluid particles is called:

A. Convection
B. Conduction
C. Radiation
D. Advection

In the reaction between silver nitrate (AgNO₃) and sodium chloride (NaCl), what is the product formed?

A. Silver chloride and sodium nitrate
B. Sodium chloride and silver nitrate
C. Silver chloride and sodium chloride
D. Sodium nitrate and silver chloride

The R value in the ideal gas law equation PV = nRT represents the:

A. Gas constant
B. Ideal pressure
C. Universal gas constant
D. Volume constant

Which law states that the pressure of a gas is directly proportional to its absolute temperature at constant volume?

A. Gay-Lussac's law
B. Boyle's law
C. Charles's law
D. Dalton's law

The reaction between an acid and a metal produces:

A. Hydrogen gas
B. Oxygen gas
C. Carbon dioxide
D. Nitrogen gas

The reaction 2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O is an example of a:

A. Neutralization
B. Combustion
C. Synthesis
D. Decomposition

Which of the following is an example of a weak base found in household cleaning products?

A. Ammonium hydroxide (NH₄OH)
B. Sodium hydroxide (NaOH)
C. Potassium hydroxide (KOH)
D. Calcium hydroxide (Ca(OH)₂)

Chemistry MCQS - QUESTION DETAILS

Similar Questions

Computer Science

Subject Wise