Which among `Li,Na,K` and `Cs` has density greater than water?

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.

Which of the following has density greater than water?

Which of the following has density greater than water?

Which of the following has density greater than water?

A solid which has density less than water is ……..

Which among Na,K,Pb and Li has the lowest melting point?

Which among Na,K,Pb and Li has the lowest melting point?

Which among Na,K,Cs and Li forms most stable hydride?