This is a correct answer to the following question about Organic semiconductor. Yes or no? Answer: Such mechanisms arise from the presence of hole and electron conduction layers separated by a band gap . Question: what are organic semiconductors and what is concept of homo and lumo in organic semiconductor
No

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This is a correct answer to the following question about First Battle of Bull Run. Yes or no? Answer: Yielding to political pressure, Brig. Gen. Irvin McDowell led his unseasoned Union Army across Bull Run against the equally inexperienced Confederate Army of Brig. Gen. P. G. T. Beauregard camped near Manassas Junction. Question: what did bull run end for the north
(Answer)
No

Ques: This is a correct answer to the following question about Testosterone. Yes or no? Answer: Testosterone is observed in most vertebrates. Question: where is testosterone produced
Ans: No

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This is a correct answer to the following question about Vacuum tube. Yes or no? Answer: Vacuum tubes were critical to the development of electronic technology, which drove the expansion and commercialization of radio broadcasting, television, radar, sound reinforcement , sound recording and reproduction , large telephone networks, analog and digital computers, and industrial process control . Question: when did the us stop producing vacuum tubes
(A).
No

Ques:This is a correct answer to the following question about Hand. Yes or no? Answer: Some evolutionary anatomists use the term hand to refer to the appendage of digits on the forelimb more generally for example, in the context of whether the three digits of the bird hand involved the same homologous loss of two digits as in the dinosaur hand. Question: what are the parts of a hand called

Ans:No

This is a correct answer to the following question about SI base unit. Yes or no? Answer: However, in a given realization of these units they may well be interdependent, i.e. defined in terms of each other. Question: what is a base SI unit
No