Single Answer MCQ
Q-00039923
Which of the following statements about alkali metals is true?
1
They are all gases at room temperature.
2
They are very hard and dense.
3
They react vigorously with water.
4
They are found in nature as pure elements.
Answer and Solution
Answer
C. They react vigorously with water.
Solution:
Alkali metals, such as sodium and potassium, react vigorously with water to produce hydrogen gas and a strong hydroxide.
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