General Science Chemistry MCQ Quiz – Objective General Knowledge (GK) Question with Answer
Latest General Science Chemistry MCQs Objective Questions
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Q1. Which of the following is part of the chalcogen group in the modern periodic table?
Answer: [C] Oxygen
Q2. Thin wires can be drawn from a piece of metal. What property of the metal is it responsible for?
Answer: [D] Ductility
Q3. How many elements are there in the modern periodic table?
Answer: [A] 118
Q4. When Sulphur is heated with rubber, the process is commonly known as?
Answer: [A] Vulcanization
Q5. Which of the following is produced when wood is burned with a limited amount of oxygen?
[D] Water gas
Answer: [B] Charcoal
Q6. What is the mass of one mole of the substance in grams?
[A] Molar mass
[B] Nuclear mass
[C] Molecular mass
[D] Atomic mass
Answer: [C] Molecular mass
Q7. The chemical name of washing soda is:
[A] Sodium carbonate
[B] Sodium hydroxide
[C] Sodium chloride
[D] Sodium hydrogen carbonate
Answer: [A] Sodium carbonate
Q8. Referring to radioactivity, which of the following is called an isomeric transition?
[A] Gamma emission
[B] Beta emission
[C] Alpha emission
[D] X-ray emission
Answer: [A] Gamma emission
Q9. The electron configuration of an atom with atomic number “20” is?
[A] 2, 2, 8, 8
[B] 2, 8, 8, 2
[C] 2, 10, 8
[D] 2, 6, 8, 4
Answer: [B] 2, 8, 8, 2
Q10. What is the ratio of pure gold to 18-carat gold?
Answer: [C] 75%
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