Element X is in Group 2 and element Y is in Group 17. A compound formed between these two elements is most likely to have the fo
2 answers:
Answer: The correct option is B.
Explanation: We are given that Element X is present in Group 2, so its valence electronic configuration will be: . It will loose 2 electrons in order to attain stable electronic configuration.
Element Y is present in Group 17, so its valence electronic configuration is: .It will gain 1 electron to attain stable electronic configuration.
Hence, we can say that 2 atoms of Y-element will be required to combine with 1 atom of X-element.
Therefore, the formula becomes .
You might be interested in
Answer : The correct option is, (D)
Explanation :
(A)
This reaction is a double displacement reaction in which the cation and anion of two reactants are exchange their places to give two different products.
(B)
This reaction is a decomposition reaction in which the larger molecule decomposes to give two or more products.
(C)
This reaction is a neutralization reaction in which an acid and a base react to give a salt and water as a product.
(D)
This reaction is a redox reaction in which the oxidation and reduction reaction occur simultaneously.
Oxidation reaction is the reaction in which a substance looses its electrons. In this oxidation state increases.
Reduction reaction is the reaction in which a substance gains electrons. In this oxidation state decreases.
In this reaction, magnesium shows oxidation due to change in oxidation number from (0) to (+2) and hydrogen shows reduction due to change in oxidation number from (-1) to (0).
Hence, the correct option is, (D)