Chemistry problems
- 1. Bauxite is an ore/mineral of
Options- A. Aluminium
- B. Beryllium
- C. Lead
- D. Tin Also asked in: Bank Exams
Correct Answer: Aluminium
- 2. What happens in an oxidation reaction?
Options- A. Protons are lost.
- B. Electrons are lost
- C. Neutrons are lost.
- D. Electrons are gained. Also asked in: Bank Exams
Correct Answer: Electrons are lost
- 3. __________gives hardness to stainless steel.
Options- A. Zinc
- B. Carbon
- C. Lead
- D. Tin Also asked in: Bank Exams
Correct Answer: Carbon
- 4. Which of the following is not soluble in water?
Options- A. Lead sulphate
- B. Zinc sulphate
- C. Potassium sulphate
- D. Sodium sulphate Also asked in: Bank Exams
Correct Answer: Lead sulphate
- 5. Haematite is an ore/mineral of
Options- A. Zinc
- B. Iron
- C. Lead
- D. Manganese Also asked in: Bank Exams
Correct Answer: Iron
- 6. What is the chemical formula of aluminium nitride?
Options- A. AlN
- B. Al2N
- C. AlN2
- D. AlN3 Also asked in: Bank Exams
Correct Answer: AlN
- 7. Uraninite is an ore/mineral of _______.
Options- A. Zinc
- B. Uranium
- C. Titanium
- D. Aluminium Also asked in: Bank Exams
Correct Answer: Uranium
- 8. The upper part of the heterosphere is composed almost completely of which gas?
Options- A. Ozone
- B. Nitrogen
- C. Oxygen
- D. Hydrogen Also asked in: Bank Exams
Correct Answer: Hydrogen
- 9. Methane an air pollutant is produced ______.
Options- A. by action of ultraviolet light on nitrogenous compounds.
- B. as a by-product of manufacturing ammoniacal fertilizers
- C. by burning of coal in insufficient air
- D. by digestion of food by animals Also asked in: Bank Exams
Correct Answer: by digestion of food by animals
- 10. Which of the following is false?
Options- A. Hydrogen atom is roughly a third of the mass of tritium
- B. Deuterium is called heavy hydrogen
- C. Deuterium atom has 1 neutron
- D. Protium is the rarest isotope of hydrogen Also asked in: Bank Exams
Correct Answer: Protium is the rarest isotope of hydrogen
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