Chemistry problems
- 1. ........... as is used as an illuminating gas.
Options- A. Methyl
- B. Propane
- C. Butene
- D. Ethyne Also asked in: Bank Exams
Correct Answer: Propane
- 2. ............. elements have the largest atoms
Options- A. F
- B. O
- C. H
- D. Li Also asked in: Bank Exams
Correct Answer: Li
- 3. ....... is displaced when zinc is added to the solution of copper sulphate
Options- A. Copper
- B. Hydrogen
- C. Zinc
- D. Sulphate Also asked in: Bank Exams
Correct Answer: Copper
- 4. Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in
Options- A. Conduction
- B. Convection
- C. Radiation
- D. Both conduction and convection Discuss
Correct Answer: Convection
- 5. What is the number of groups and periods in the modern periodic table?
Options- A. 18, 7
- B. 18, 8
- C. 16, 7
- D. 16, 8 Discuss
Correct Answer: 18, 7
- 6. Which among the following is an example of mixture?
Options- A. Milk
- B. Gasoline
- C. Liquefied petroleum gas
- D. All options are correct Discuss
Correct Answer: All options are correct
- 7. Researchers at the University of Illinois have discovered new form of matter called Excitonium which was coined by ______ in the 1960?
Options- A. Bertrand Halperin
- B. Eugene Wigner
- C. Paul Dirac
- D. Felix Bloch Discuss
Correct Answer: Bertrand Halperin
- 8. Magnesium is a constituent metal of __________
Options- A. Chlorophyll molecule
- B. DNA
- C. Mitochondria
- D. Ribosomes Discuss
Correct Answer: Chlorophyll molecule
- 9. Name the gas used in preparation of bleaching powder
Options- A. Oxygen
- B. Hydrogen
- C. Nitrogen
- D. Chlorine Discuss
Correct Answer: Chlorine
- 10. In arc welding, Argon is used because of its
Options- A. Low reactivity with metal
- B. Ability to lower the melting point of the metal
- C. High flammability
- D. High calorific value Discuss
Correct Answer: Low reactivity with metal
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