Select the correct option to fill in the blank space/s
B2CD, _____, BCD4, _____, BC6D
Explanation:
The subscript in the terms follows the pattern: 2 _ 4 _ 6.
Hence, the subscript in the missing terms is 3 and 5 respectively.
Also, the position of the subscript follows the pattern B _ D _ C. Hence, it should be with the letters C and B respectively in the missing terms.
Hence, option (a).
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