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- Question
The luster of a metal is due to
Options- A. its high density
- B. its high polishing
- C. its chemical inertness
- D. presence of free electrons
- Correct Answer
- presence of free electrons
- 1. The number of waves in n x 10th Bohr's orbit are
Options- A. n2
- B. n
- C. n-2
- D. n3 Discuss
- 2. The largest production of mica in Asia is from
Options- A. Indonesia
- B. Malaysia
- C. Myanmar
- D. India Discuss
- 3. The imaginary axis at which the earth rotates remains inclined at an angle of ____ to the plane of earth's orbit.
Options- A. 44 1/2 °
- B. 55 1/2 °
- C. 66 1/2 °
- D. 0 ° Discuss
- 4. The groundwater can become confined between two impermeable layers. This type of enclosed water is called
Options- A. artesian
- B. artesian well
- C. unconfined groundwater
- D. confined groundwater Discuss
- 5. The highest sand dunes are found is
Options- A. the Sahara desert
- B. the Atacama desert
- C. the Kalahari desert
- D. the Gobi desert Discuss
- 6. The hottest part of the gas flame is known as
Options- A. luminous zone
- B. dark zone
- C. blue zone
- D. non-luminous zone Discuss
- 7. The high reactivity of fluorine is due to
Options- A. its high electro negativity
- B. small size of fluorine atom
- C. availability of d-orbitals
- D. strong F - F bond Discuss
- 8. The hardest form of carbon is
Options- A. coke
- B. graphite
- C. diamond
- D. charcoal Discuss
- 9. The main use of salt in the diet is to
Options- A. make the taste of food better
- B. produce in small amounts the hydrochloric acid required for the digestion of food
- C. ease the process of cooking
- D. increase the solubility of food particles in water Discuss
- 10. The gas used in the manufacture of vanaspati from vegetable oil is
Options- A. hydrogen
- B. oxygen
- C. nitrogen
- D. carbon dioxide Discuss
Chemistry problems
Search Results
Correct Answer: n
Correct Answer: India
Correct Answer: 66 1/2 °
Correct Answer: artesian
Correct Answer: the Sahara desert
Correct Answer: non-luminous zone
Correct Answer: its high electro negativity
Correct Answer: diamond
Correct Answer: produce in small amounts the hydrochloric acid required for the digestion of food
Correct Answer: hydrogen
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