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Q. A ‘breath test’ used by traffic police to check drunken driving uses ____?
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Q. what is the symbol of gold?
Q. Which gas emitted by power stations causes acid rain?
Q. ...... is the metal used for making filaments of electric bulbs
Q. Which of the following one of the following forms of phosphorus is most reactive -
Q. Calcium salts used as fertilizer is:
Q. What type of compound is Lecithin?
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