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 sublimation in chemistry?
A. The transformation of a solid directly into a gas
B. The transformation of a gas directly into a solid
C. The transformation of a liquid directly into a gas
D. The transformation of a liquid directly into a solid
Show Answer…...Hide AnswerCorrect Answer: A. The transformation of a solid directly into a gas
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Which ocean is located between the Americas and Africa and Europe?
A. Atlantic Ocean
B. Indian Ocean
C. Pacific Ocean
D. Arctic Ocean
Show Answer…...Hide AnswerCorrect Answer: A. Atlantic Ocean
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Which ocean is called the ocean of storms?
A. Atlantic Ocean
B. Pacific Ocean
C. Indian Ocean
D. Moon Ocean
Show Answer…...Hide AnswerCorrect Answer: A. Atlantic Ocean
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If 70% of the students in a school are boys and the number of girls is 504, what is the number of boys in the school?
A. 1176
B. 504
C. 876
D. 1276
Show Answer…...Hide AnswerCorrect Answer: A. 1176:
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Hydrogen bond is unimportant in
A. DNA structure
B. The liquid properties of water
C. Liquid HF
D. Liquid CH4
Show Answer…...Hide AnswerCorrect Answer: D. Liquid CH4
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All of the following acids have hydrogen bond in liquid state except
A. sulfuric acid
B. nitric acid
C. hydrofluoric acid
D. hydrochloric acid
Show Answer…...Hide AnswerCorrect Answer: D. hydrochloric acid
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Which of the following statements is incorrect?
A. dispersion force is the weakest type of intermolecular interactions
B. the strong intermolecular attractions in H2O result from hydrogen bonding
C. boiling point of H2S is less than H2O
D. boiling point of non-polar substances tends to decrease with increasing molecular weight
Show Answer…...Hide AnswerCorrect Answer: D. boiling point of non-polar substances tends to decrease with increasing molecular weight
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