What is the other name of sodium carbonate?
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Which of the following is used in the preparation of tincture iodine, cough syrup and many tonics?
Which of the following is an amphoteric oxide?
The most active ingredient in bleaching powder is
Who stated the following law : 'The properties of the elements are the periodic function of their atomic masses'?
Biogas is produced from biomass by
Metals are placed on which side of the Modern Periodic table?
Common salt (NaCl) is made up of
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