Question

Which of the following statements about s-block elements is(are) correct?


They form coloured complexes

They are quite heavy elements

They are good reducing agents

Heavier elements show variable oxidation states​

Answer 1

Answer:

They form coloured Complexes..

Explanation:

Hope this may helped u if yes than follw me

Answer 2

S- Block elements are good reducing agents.

• S- block elements do not form coloured complexes as their ionisation energy is very high, making excitability of electrons hard. Coloured complexes are characteristic of d-block elements.
• S - block elements are not very heavy elements. In fact they are the lightest elements in their respective period due to low nuclear charge.
• S- block heavier elements do not show many variable oxidation states due to presence of only 1 valence electron.
• S- block elements are good reducing agents because they have only 1 extra electron from achieving noble element configuration. Thus they can easily lose their valence electron and reduce other elements.

Hence option (3) They are good reducing agents is correct.