Chemistry MCQs

Chemistry Objective (Multiple Choice) General Knowledge Questions & Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Examination.

1. Which among the following element is an essential constituent of acids?
[A] Nitrogen
[B] Hydrogen
[C] Oxygen
[D] Helium

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2. Which among the following methods can be used to remove the permanent hardness in water due to calcium or magnesium sulphates?
[A] Sulphonate method
[B] Nitrate method
[C] Zeolite method
[D] None of these

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3. Which among the following is the most abundant organic compound in nature?
[A] Glucose
[B] Fructose
[C] Sucrose
[D] Cellulose

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4. The Helium atoms that have lost two electrons are called ________?
[A] Alpha rays
[B] Beta rays
[C] Gamma rays
[D] None of the above

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5. Which among the following will undergo a chemical reaction depending on the pH of the solution?
[A] Calcium Oxide
[B] Zinc Oxide
[C] Ferric Oxide
[D] Ferrous Oxide

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6. Which of the following elements is not a member of the Carbon Group in the periodic table?
[A] Silicon
[B] Germanium
[C] Tin
[D] Selenium

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7. Gammaxene, D.D.T. and Bleaching powder are important compounds of :
[A] Chlorine
[B] Nitrogen
[C] Sulphur
[D] Phosphorus

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8. Which of the following is the softest metal?
[A] Cesium
[B] Lead
[C] Gold
[D] Silver

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9. What is the atomic number of Barium?
[A] 54
[B] 56
[C] 58
[D] 60

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10. What happens to the non-metallic character of elements in the p-block of the periodic table?
[A] non-metallic character decreases down the group
[B] non-metallic character increases down the group
[C] No fix pattern
[D] None

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