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प्रश्न
Write the reactions of the first three alkaline earth metals with dilute hydrochloric acid.
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उत्तर
Reactions of the first three alkaline earth metals with dilute hydrochloric acid:
Be + 2HCl → BeCl2 + H2
Mg + 2HCl → MgCl2 + H2
Ca + 2HCl → CaCl2 + H2
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संबंधित प्रश्न
What are the following group known as?
Group 17
Name two elements of each group.
What happens to the number of valence electrons in atoms of elements as we go down a group of the periodic table?
How many electrons do inert gases have in their valence shells?
State the characteristics which remain similar in moving down in a group of the periodic table.
Write a short note on the following type of element –
noble gases
‘The periodic table contains elements methodically grouped together’.
Give a reason for the following:
Noble gases do not form compounds readily.
Give a reason for the following:
Group 1 [I – A] elements are called alkali metals.
State the following:
The group which contains highly reactive electronegative non-metals including chlorine.
