Question

In electrolysis of water, X and Y are liberated respectively at cathode and anode. Identify X and Y. Which among X and Y is liberated in a higher amount and by how much?

Answer 1

Analyze the atomic number of given elements and answer the following: 20Ca, 10Ne, 9F, 36Kr.

a) Which among them do/does not take part in chemical reactions? Give reason.

b) What is the valency of Ca atom?

c) Which of them form anion easily?

d) Draw electron dot diagram of the molecule formed between Calcium and Fluorine.

e).Write down the molecular formula of Calcium fluoride.

f)

How many electrons are present in the outermost shell of calcium ion?