Nursing Elites

1. What is the coefficient of oxygen in the balanced chemical equation for the combustion of methane (CH₄)?

• A. 1
• B. 2
• C. 3
• D. 4

Correct answer: B

Rationale: In the balanced chemical equation for the combustion of methane, CH₄ + 2O₂ → CO₂ + 2H₂O, the coefficient of oxygen (O₂) is 2. This indicates that two molecules of oxygen are required to react with one molecule of methane to produce carbon dioxide and water, ensuring the equation is balanced. Choice A is incorrect because the coefficient of oxygen is not 1 but 2. Choices C and D are incorrect as they do not represent the correct coefficient of oxygen in the balanced equation. Understanding the coefficients in a balanced chemical equation is crucial for accurately representing the stoichiometry of the reaction.

2. Which deadly disease was eliminated through an intensive vaccination program?

• A. AIDS
• B. Smallpox
• C. Diabetes type 1
• D. Rheumatoid arthritis

Correct answer: B

Rationale: Smallpox was eradicated globally through an intensive vaccination program. The World Health Organization (WHO) led a successful global campaign to vaccinate people against smallpox, ultimately leading to its eradication in 1980. AIDS, diabetes type 1, and rheumatoid arthritis are serious conditions, but they were not eliminated through vaccination programs like smallpox. Therefore, the correct answer is B, Smallpox. AIDS is caused by the human immunodeficiency virus (HIV) and remains a significant global health issue. Diabetes type 1 is an autoimmune condition where the body attacks insulin-producing cells, leading to high blood sugar levels. Rheumatoid arthritis is an autoimmune condition that primarily affects the joints, causing inflammation and pain.

3. What is the general formula for an alkene?

• A. CnH2n+2
• B. CnH2n
• C. CnH2n-2
• D. CnH2n+1

Correct answer: B

Rationale: The general formula for an alkene is \(C_nH_{2n}\), indicating the presence of a double bond between carbon atoms.

4. What is correct about the hormones that stimulate male and female organs to produce male and female sex hormones?

• A. Female organs are stimulated by female hormones and male organs by male hormones.
• B. The same hormones that produce male or female sex characteristics stimulate the organs.
• C. The same hormones stimulate both male and female organs to produce sex hormones.
• D. The hypothalamus stimulates the pituitary gland's secretion of male and female hormones.

Correct answer: C

Rationale: The correct answer is C. The same hormones stimulate both male and female organs to produce sex hormones. Hormones such as luteinizing hormone (LH) and follicle-stimulating hormone (FSH) are produced by the pituitary gland and act on the ovaries in females and the testes in males to stimulate the production of sex hormones (estrogen and progesterone in females, testosterone in males). Therefore, the same hormones stimulate both male and female organs to produce sex hormones. Choices A, B, and D are incorrect because they do not accurately describe the relationship between hormones and the stimulation of male and female organs to produce sex hormones.

5. How does Wilde use irony to critique the upper class in the play?

• A. By portraying the upper class as sincere and honorable.
• B. By showing that the upper class is deeply concerned with morality.
• C. By exaggerating the trivial concerns and behaviors of the upper class.
• D. By highlighting the noble and upright nature of the upper class.

Correct answer: C

Rationale: Wilde uses irony by exaggerating the trivial concerns and behaviors of the upper class, revealing their lack of genuine depth and morality. In 'The Importance of Being Earnest,' Wilde satirizes the British aristocracy by highlighting their absurdities and trivialities. The play's characters, like Jack Worthing and Algernon Moncrieff, lead double lives, symbolizing the dual nature of their social status. Through witty dialogue, puns, and irony, Wilde exposes the superficiality and hypocrisy of the upper classes. The term 'Bunburying' coined by Wilde exemplifies the characters' deceitful actions to avoid social responsibilities. Additionally, the play ridicules the concept of marriage, portraying it as a societal transaction rather than a romantic bond. For instance, Lady Bracknell's interrogation of Jack about his eligibility as a suitor for Gwendolen underscores the materialistic view of marriage prevalent in the society Wilde critiques. Wilde's humorous yet critical portrayal of the aristocracy in 'The Importance of Being Earnest' makes it a timeless and cherished work.

Similar Questions