61. Which acid is used in Lead storage battery?
62. The acid used in lead storage cells is
63. The acid used in lead storage cells is
64. Milk tastes sour when it is left in open for some time. This happens due to the formation of
65. The compound used in prickly heat powder to prevent excessive sweating is
66. The alkaloid naturally found in coffee, cocoa and cola nut is
67. Formic acid is produced by
68. Which one of the following is most acidic?
69. Milk tastes sour when kept in the open for sometime due to the formation of
70. ________ is used for making vinegar.
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