Question

Complete the sentence with the most suitable option:

Hydrogen is an element ________ atomic number is $1$ and _________ atomic weight is $1.008$.

• A. Whose / whose
• B. Of which / whose
• C. Which / of which
• D. Which / which

Answer 1

The correct option is A Whose / whose

Whose is a possessive pronoun. We use it when we’re asking (or telling) whom something belongs to., like both the atomic number and atomic weight are pertaining to hydrogen. Hence, Option A is correct. The rest of the options do not adhere to this rule, hence incorrect.