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Chemistry Questions and Answers

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241. The concept of elliptical orbitals was suggested by
 
  • A. Neil Bohr
  • B. Thomson
  • C. Sommerfeld
  • D. Rutherford
 
242. Which is an example of fermented beverage?
 
  • A. wine
  • B. whisky
  • C. brandy
  • D. rum
 
 
243. Two isotopic atoms differ in
 
  • A. atomic number
  • B. number of protons
  • C. number of electrons
  • D. mass number
 
244. A compound soluble in an organic solvent is likely to have
 
  • A. ionic bond
  • B. covalent bond
  • C. metallic bond
  • D. oxygen atoms
 
245. An amalgamation is a mixture of
 
  • A. mercury + water
  • B. mercury + oxygen
  • C. mercury + chlorine
  • D. mercury + metal