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
61
PH method was proposed by
Answer:
Soren Sorenson
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62
Formic acid is also called
Answer:
Methanoic acid
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63
The reformation of ozone in the stratosphere is powered by
Answer:
ultraviolet radiation
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64
KOH is used in the making of
Answer:
liquid soap
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65
Which of the following is used in detergents to remove food stains on clothes?
Answer:
protease
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66
Most of the dust particles and water vapors are present in
Answer:
troposphere
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67
Vitamin C is soluble in
Answer:
water
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68
Which of the following must be present in our diet?
Answer:
essential amino acids
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69
The temperature of the outer mesosphere is
Answer:
−93 °C
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70
What is the term used for a salt which is formed by the complete neutralization of an acid?
Answer:
normal salt
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