In how many forms do matter exists?
A. Three
B. Four
C. Five
D. Two
Correct Answer: B. Four
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Here, you may find CSS Optional Subjects MCQs. If you want to prepare MCQs of optional subjects, CSS MCQs platform is here to serve you while preparing your MCQs portion of your CSS Exam. Please practice these CSS Optional Subjects MCQs on a daily basis.
What is the simplest form of matter?
A. Gas
B. Liquid
C. Solid
D. Semi-solid
Correct Answer: A. Gas
What do we call to the sudden expansion of plasma?
A. Avogadro’s law
B. Grahams law of diffusion
C. Joule Thompson effect
D. Daltons law of partial pressure
Correct Answer: C. Joule Thompson effect
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One mole of an ideal gas at 546.5 K under 2 atm pressure has a volume of
A. 22.414 m3
B. 44.828 dm3
C. 22.414 dm3
D. 11.212 cm3
Correct Answer: C. 22.414 dm3
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Which document marked the official declaration of American Independence on July 4, 1776?
A) The Articles of Confederation
B) The Treaty of Paris
C) The Declaration of Independence
D) The U.S. Constitution
Correct Answer: C) The Declaration of Independence
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An English scientist Robert Hooke observed cells in:
A. 1660
B. 1665
C. 1670
D. 1680
Correct Answer: B. 1665
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What is the primary function of a vacuole in a cell?
A. To store water and other substances
B. To transport materials within the cell
C. To generate energy for the cell
D. To provide structural support for the cell
Correct Answer: A. To store water and other substances
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