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Q. A gas which is not present in normal samples of air is
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Q. Which one of the following is not radioactive
Q. Is SiCl4 polar or nonpolar?
Q. The carbon-carbon bond length is shortest in
Q. The octane number of zero is assigned to
Q. Fill in the blank with the most appropriate option. Ethanol is denatured to ___.
Q. The pH of an aqueous solution of hydrochloric acid will be around
Q. The hardest substance available on earth is
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