Chemistry MCQs
Topic Notes: Chemistry
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
1
The blotting paper helps observe liquid by__________?
Answer:
Capillary Action
Blotting paper observes liquid through capillary action, where liquid moves through narrow spaces without external force, making it visible. Other options like surface action, viscosity, and boldness don't describe this process accurately.
2
Generally the limit of visible spectrum is__________?
Answer:
3800 to 7600 A°
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3
Which type of radiation has a longer wavelength compared to the others?
Answer:
infra red
Infrared radiation has a longer wavelength compared to visible light, X-rays, ultraviolet radiation, and gamma rays. This is because it falls at the lower end of the electromagnetic spectrum, with wavelengths ranging from 780 nm to 1 mm. This makes infrared radiation distinct in its applications and characteristics.