Chemistry · S and p Block Elements
Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive practice and topic analytics.
Rb is an element in the same group of Li and Na) Which one is true about Rb:
- A
Reacts slowly with H2O
- B
Forms an insoluble hydroxide
- C
It is liberated at Cathode during the electrolysis of its salt in aqueous.
- D
Forms a sulphate Rb2SO4
Rb(s) + H2SO4(aq) ======> Rb2SO4(s) + H2(g)
Rubidium reacts very rapidly with water to form a colourless solution of rubidium hydroxide (RbOH) and hydrogen gas (H2).
Rubidium Hydroxide is very soluble in water.
H2 gas is liberated at the cathode during the electrolysis of rudibium salt.
Rb(s) + H2SO4(aq) ======> Rb2SO4(s) + H2(g)
Tagged under Chemistry · S and p Block Elements · 2000