question In spectrophotometry what does the Beer Lambert law describe

Which nucleic acid is involved in the formation of the ribosomal subunits and plays a role in protein synthesis?

A. Ribosomal RNA (rRNA)
B. Messenger RNA (mRNA)
C. Transfer RNA (tRNA)
D. Small nuclear RNA (snRNA)

What is the equation for calculating the ideal gas constant (R)?

A. R = 8.314 J/(mol·K)
B. R = 1.987 cal/(mol·K)
C. R = 0.0821 L·atm/(mol·K)
D. All of the above

What is the name for a bond formed by the attraction between a hydrogen atom and a highly electronegative atom?

A. Hydrogen bond
B. Ionic bond
C. Covalent bond
D. Metallic bond

In the chemical equation 2HgO → 2Hg + O₂, the type of reaction is:

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

The bond angle in a molecule with a trigonal planar electron domain geometry is approximately:

A. 120°
B. 109.5°
C. 180°
D. 90°

The reaction between an acid and a base to form water and a salt is known as:

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

The term "radioactive half-life" is the time required for:

A. Half the atoms in a sample to decay
B. All atoms in a sample to decay
C. One-third of atoms in a sample to decay
D. One-fourth of atoms in a sample to decay

What is the term for a bond formed by the attraction between two atoms with identical electronegativities?

A. Nonpolar covalent
B. Polar covalent
C. Ionic
D. Metallic

The balanced chemical equation for the reaction between calcium oxide (CaO) and water (H₂O) is:

A. CaO + H₂O → Ca(OH)₂
B. CaO + H₂O → CaOH + H₂
C. CaO + 2H₂O → Ca(OH)₂
D. CaO + 2H₂O → CaOH + H₂

What is the term for a bond formed by the attraction between positive and negative metal ions?

A. Metallic
B. Ionic
C. Covalent
D. Polar

Chemistry MCQS - QUESTION DETAILS

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