Question Detail

CHM 102 Sblock elements Objective Question

Question

What is the general characteristic of the hydrides formed by Group 1 elements?
Options
A They are covalent compounds where hydrogen forms positive ions.
B They are ionic compounds where hydrogen forms negative ions.
Correct Answer
C They are covalent compounds where the metals form negative ions.
D They are typically stable in water and do not react.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 11 states: 'They are ionic' and 'The metals form the positive ions while the hydrogen forms the negative ion.' It also mentions they are 'very reactive' and 'give off hydrogen in water,' contradicting option D.

Hint

Recall the nature of Group 1 metals and how they typically bond, then consider hydrogen's role in hydrides, as described on page 11.

Question Info