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Q.

Consider the following table:


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What is the number of electrons present in a monovalent positive cation of A and a monovalent anion of D?


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a

4, 22 

b

3, 20

c

2, 18

d

1, 19

answer is A.

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Detailed Solution

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The number of electrons present in a monovalent positive cation of A and a monovalent anion of D is 2, 18.
The species with a positive charge is then referred to as a cation. During electrolysis, positively charged particles known as monovalent cations move from the anode or positive pole to the cathode or negative pole. Na+ is one instance. Anions with a valency of one are known as monovalent anions. In other words, negative ions having a valency of -1 are known as monovalent anions.
 
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