1.

Direction: Fill in the gap with the correct option in each of the question from. \[{{\mathbf{B}}_{\mathbf{2}}}\mathbf{CD}.............\text{ }\mathbf{BC}{{\mathbf{D}}_{\mathbf{4}}},\text{ }{{\mathbf{B}}_{\mathbf{5}}}\mathbf{CD},\text{ }\mathbf{B}{{\mathbf{C}}_{\mathbf{6}}}\mathbf{D}\]

A. \[{{B}_{2}}{{C}_{2}}D\]
B. \[B{{C}_{3}}D\]
C. \[{{B}_{2}}{{C}_{3}}D\]
D. \[BC{{D}_{7}}\]
E. None of these
Answer» C. \[{{B}_{2}}{{C}_{3}}D\]


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