Chemistry - Single MCQs (Page 6)

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Q51. One mole of a gas occupies a volume of 22.4 L. This is derived from...Q52. In compound A, 1.00g of nitrogen unites with 0.57g of oxygen. In compound B, 2.0...Q53. Which of the following statements about a compound is incorrect...Q54. Which of the following is an example of a heterogeneous substance...Q55. Which of the following is an example of a heterogeneous substance...Q56. A measured temperature on Fahrenheit scale is 200 °F. What will this reading be...Q57. Which element has the atomic number 3?...Q58. Fe has 26 protons in its nucleus. What are the number of electrons in Fe²+ ( II...Q59. Which of the following elements has the lowest melting point?...Q60. The Chemical formula of Ammonium nitrate is _________...