Questions 19-22 are based on the following passage.
That Priestleys contributions to the knowledge of chemical
fact were of the greatest importance is unquestionable; but
it must be admitted that he had no comprehension of the
deeper significance of his work; and, so far from
5 contributing anything to the theory of the facts which he
discovered, or assisting in their rational explanation,
his influence to the end of his life was warmly exerted in
favor of error. From first to last, he was a stiff adherent
of the phlogiston doctrine which was prevalent when his
10 studies commenced; and, by a curious irony of fate, the man
who by the discovery of what he called dephlogisticated air
furnished the essential datum for the true theory of
combustion, of respiration, and of the composition of water,
to the end of his days fought against the inevitable
15 corollaries from his own labors.
It is a trying ordeal for any man to be compared with Black
and Cavendish, and Priestley cannot be said to stand on
their level. Nevertheless his achievements are truly
wonderful if we consider the disadvantages under which he
20 labored. Without the careful scientific training of Black,
without the leisure and appliances secured by the wealth of
Cavendish, he scaled the walls of science; and trusting to
mother wit to supply the place of training, and to ingenuity
to create apparatus out of washing tubs, he discovered more
25 new gases (including oxygen, which he termed
dephlogisticated air) than all his predecessors put
together had done.
Both passages adapted from: Science & Education, T H Huxley (1893)Which pairing best reflects the main emphasis of the two passages? The first focuses mainly on Priestleys ________________.
A. Discoveries of chemical fact; the second on his ingenuity B. Discovery of “dephlogisticated air”; the second on his discoveries of gases C. Lack of theoretical understanding; the second on his lack of training D. Importance to future science; the second on his status in relation to his contemporaries E. Theoretical misconceptions; the second on his success in the face of disadvantage
Theoretical misconceptions; the second on his success in the face of disadvantage-the main point of paragraph one is that, though priestley made important contributions to factual knowledge, he had no comprehension of the deeper significance of his work, and. in fact, spent his life defending wrong ideas. this suggests that the first part of answer c and e could be right. the main point of paragraph two is that, though priestley was not as great as some other scientists, he managed to make important discoveries that were truly wonderful if we consider the disadvantages under which he labored. this idea is most accurately conveyed in answer e.