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Chemistry Questions and Answers

General Science
33. The metal that occurs in free state is
 
  • A. iron
  • B. aluminium
  • C. sodium
  • D. gold
 
 
34. The pH of an acidic solution is
 
  • A. zero
  • B. neutral
  • C. less than 7
  • D. greater than 7
 
35. Tannic acid is present in
 
  • A. sour milk
  • B. tea
  • C. grapes
  • D. lemon
 
36. The elements with the maximum number of isotopes in nature is
 
  • A. uranium
  • B. hydrogen
  • C. lead
  • D. carbon