Answer the following:  a. Which of the following has density greater than
Channel: Doubtnut
Date: 2020-07-26

Answer the following:  a. Which of the following has density greater than water ? `Li, Na, K, Cs`.  b. Arrange K, Li, Rb in other of increasing electrode potential.  c. Arrange Na, Li, K and Cs in increasing order of metallic bond.  d. Which among Na, K, Cs and Li forms stable hydride ?  e. On reacting eith oxygen, potassium can form `K_(2)O`, `KO_(2)` and `K_(2)O_(2)`. Is it correct ?  f. Give the name of the hardest alakli metal.  g. Arrange the following in order orf increasing polarising albility.  `Li^(o+), Na^(o+), K^(o+), Cs^(o+)`  h. Mention some of the properties of alkali metals which increse down the group.  i. Mention some of the properties of alkali metals which decrease down the group.