Passage
In 1856, eighteen-year-old chemistry student William Perkin was attempting to synthesize quinine, a drug used to treat malaria, in his home laboratory. [1] Conversely, his experiment failed, producing a dark, sticky residue instead of the clear medicine. While cleaning the flask with alcohol, Perkin noticed that the substance left a brilliant purple residue, which led to the accidental discovery of mauveine, the world's first synthetic organic dye.
Which choice best replaces the underlined portion marked [1] to establish a logical transition between the two sentences?
- AConversely,
- However,Cevap
- CFor instance,
- DFurthermore,
Cevap
However,
The correct answer is 'However,'. The passage describes a contrast between William Perkin's initial goal (synthesizing a drug to treat malaria) and the actual outcome of his experiment (failure). The transition 'however' is the most appropriate word to signal this contrast.
Adım Adım Çözüm
Anahtar Kavram
Sentence-Level Transitions