In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
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Question: Question: Which of the following molecules has a simple covalent bond?
Options: <1> C2. <2> N 2 <3> O 2 <4> O 3. <5> F 2

Answer: 5

Question: Question: The treatment of 1-hexyne with 1 mole of hydrogen bromide results in:
Options: <1> 1-bromo-1-hexene. <2> 1-bromo-2-hexene. <3> 1-bromo-3-hexene. <4> 2-bromo-1-hexene. <5> 2-bromo-2-hexene.

Answer: 4

Question: Question: The practice of posteroanterior chest x-ray in forced expiration is very useful for the diagnosis of:
Options: <1> Loculated pleural effusion. <2> Pneumothorax minimum. <3> Hemothorax <4> Pulmonary atelectasis. <5> Pericarditis

Answer:
2