Discussion
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- Question
__________gives hardness to stainless steel.
Options- A. Zinc
- B. Carbon
- C. Lead
- D. Tin
- Correct Answer
- Carbon
- 1. What happens in an oxidation reaction?
Options- A. Protons are lost.
- B. Electrons are lost
- C. Neutrons are lost.
- D. Electrons are gained. Discuss
- 2. Bauxite is an ore/mineral of
Options- A. Aluminium
- B. Beryllium
- C. Lead
- D. Tin Discuss
- 3. The mass of proton and mass of ________ is same.
Options- A. Neutron
- B. Electron
- C. Isoprone
- D. Alpha particle Discuss
- 4. The elements known as primary nutrients for plants
Options- A. Nitrogen, Phosphorus and Potassium
- B. Nitrogen, Oxygen and Silicon
- C. Potassium, Boron and Nitrogen
- D. Nitrogen, Phosphorus and Iron Discuss
- 5. Which among the following will be a negative ion?
Options- A. If it has more electrons than protons
- B. If it has more electrons than neutrons
- C. If it has more protons than electrons
- D. If it has more protons than neutrons Discuss
- 6. Which of the following is not soluble in water?
Options- A. Lead sulphate
- B. Zinc sulphate
- C. Potassium sulphate
- D. Sodium sulphate Discuss
- 7. Haematite is an ore/mineral of
Options- A. Zinc
- B. Iron
- C. Lead
- D. Manganese Discuss
- 8. What is the chemical formula of aluminium nitride?
Options- A. AlN
- B. Al2N
- C. AlN2
- D. AlN3 Discuss
- 9. Uraninite is an ore/mineral of _______.
Options- A. Zinc
- B. Uranium
- C. Titanium
- D. Aluminium Discuss
- 10. The upper part of the heterosphere is composed almost completely of which gas?
Options- A. Ozone
- B. Nitrogen
- C. Oxygen
- D. Hydrogen Discuss
Chemistry problems
Search Results
Correct Answer: Electrons are lost
Correct Answer: Aluminium
Correct Answer: Neutron
Correct Answer: Nitrogen, Phosphorus and Potassium
Correct Answer: If it has more electrons than protons
Correct Answer: Lead sulphate
Correct Answer: Iron
Correct Answer: AlN
Correct Answer: Uranium
Correct Answer: Hydrogen
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