S Block Elements Question 76
Question: The alkali metals have low melting point. Which of the following alkali metal is expected to melt if the room temperature rises to $ 30{}^\circ C $ -
Options:
A) Na
B) K
C) Rb
D) Cs
Show Answer
Answer:
Correct Answer: D
Solution:
[d] The melting point of alkali metals decreases from Li to Cs as cohesive force decreases with increase in atomic size. Melting point of $ Cs=302Ki.e., $
$ 29{}^\circ C $ .
BETA
