Discussion
Home ‣ General Knowledge ‣ Chemistry Comments
- Question
The material which can be deformed permanently by heat and pressure is called a
Options- A. thermoplastic
- B. thermoset
- C. chemical compound
- D. polymer
- Correct Answer
- thermoset
- 1. The items amenable to detection by soft x-rays are
Options- A. contrabands
- B. lead in bullets
- C. narcotics
- D. genuine coins from counterfeit coins Discuss
- 2. The ore which is found in abundance in India is
Options- A. monazite
- B. fluorspar
- C. bauxite
- D. magnetite Discuss
- 3. The mass number of an atom is equal to
Options- A. the number of protons
- B. the number of protons and electrons
- C. the number of nucleons
- D. the number of neutrons Discuss
- 4. The hydronium ion is
Options- A. H+
- B. HO -
- C. H2+
- D. H3O+ Discuss
- 5. The iron ore magnetite consists of
Options- A. Fe2O3
- B. Fe3OH4
- C. FeCO3
- D. 3Fe2O3 .. 3H2O Discuss
- 6. The octane number of zero is assigned to
Options- A. 2-methyl octane
- B. n-heptane
- C. iso-octane
- D. 3-methyl octane Discuss
- 7. The method that cannot be used for removing permanent hardness of water is
Options- A. adding sodium carbonate
- B. distillation
- C. adding caustic soda
- D. boiling Discuss
- 8. The molecular formula of phosphorous is
Options- A. P1
- B. P2
- C. P3
- D. P4 Discuss
- 9. The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is
Options- A. 5x/36
- B. 5x
- C. 7.2 x
- D. x/6 Discuss
- 10. The most important ore of aluminium is
Options- A. bauxite
- B. magnetite
- C. haematite
- D. monazite Discuss
Chemistry problems
Search Results
Correct Answer: genuine coins from counterfeit coins
Correct Answer: monazite
Correct Answer: the number of nucleons
Correct Answer: H3O+
Correct Answer: Fe2O3
Correct Answer: n-heptane
Correct Answer: boiling
Correct Answer: P4
Correct Answer: 5x/36
Correct Answer: bauxite
Comments
There are no comments.More in General Knowledge:
Programming
Copyright ©CuriousTab. All rights reserved.