Of the Following, Which Is Not an Alkali Metal

question 126

Multiple Choice

Of the following, which is not an alkali metal?

• A) Cs.
• B) Fr.
• C) K.
• D) Rb.
• E) Re.

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Definitions:

RNA

Ribonucleic acid, a nucleic acid present in all living cells. Its principal role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins.

Uracil

One of the four nucleobase components of RNA, it pairs with adenine during RNA transcription and replaces thymine found in DNA.

Thymine

A pyrimidine base found in DNA, pairs with adenine in the DNA structure.

rRNA

Ribosomal RNA, a type of RNA that combines with proteins to form ribosomes, which are essential in the process of protein synthesis in cells.