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- Question
The mass of a mole of NaCl is the
Options- A. 58.44 gm/mol
- B. 57.25 gm/mol
- C. 56.31 gm/mol
- D. 59.14 gm/mol
- Correct Answer
- 58.44 gm/mol
ExplanationTo get the mass of a mole of NaCl, we need to add the molar atomic weights of the individual elements i.e, Na and Cl
Atomic weights of Na = 22.99 gm/mol Cl = 35.45 gm/mol
Now, mass of a mole of NaCl = 22.99 + 35.45 = 58.44 gm/mol.
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Options- A. Kapil Dev
- B. Roger Binny
- C. Sunil Gavaskar
- D. M. Amarnath Discuss
- 2. Professor Amartya Sen is famous in which of the fields?
Options- A. Biochemistry
- B. Electronics
- C. Economics
- D. Geology Discuss
- 3. Central Drug Research Institute is located at
Options- A. Trissur
- B. Nagpur
- C. Mysore
- D. Lucknow Discuss
- 4. The largest part of our hydrosphere is
Options- A. Atlantic Ocean
- B. Indian Ocean
- C. Pacific ocean
- D. Antarctica ocean Discuss
- 5. Who is the author of famous book 'The Judgement'?
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- B. R. Vankataraman
- C. Kuldip Nayar
- D. Janardhan Turkur Discuss
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Options- A. Nottinghamshire
- B. Yorkshire
- C. Lancashire
- D. Leicestershire Discuss
- 7. The major cause of species extinction is
Options- A. agricultural activities
- B. extraction (including mining, fishing, logging)
- C. development (human settlements, industry)
- D. habitat loss and degradation Discuss
- 8. kilohertz is a unit which measures
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- B. electromagnetic radio wave frequencies
- C. voltage
- D. electric resistance Discuss
- 9. Atoms of an element differ from those of all other elements in
Options- A. atomic number and electronic configuration
- B. number of neutrons and number of valence electrons
- C. atomic number and number of valence electrons
- D. number of neutrons and electronic configuration Discuss
- 10. Which radioactive pollutant has recently drawn to public, due to its occurrence in the building material?
Options- A. Thorium
- B. Radium
- C. Plutonium
- D. Radan Discuss
More questions
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Explanation:
This capped off an amazing win by the Indians over the all-conquering West Indian side!
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Explanation:
Sachin didn't have the greatest of times in Geoff Boycott's land. He averaged 40 odd, which is pretty low by his standards.
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