Who of the following Indian vocalist and musician established the Academy of Performing Arts and Research in Switzerland?
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Humayun (1530–1540 AD) was the ruler of which dynasty?
The number of days' sales uncollected is calculated by
Common salt (NaCl) is made up of
Delhi is located on the banks of river ___.
What is the other name of sodium carbonate?
What happens as we go down the group in the periodic table?
The gas evolved when sodium carbonate reacts with hydrochloric acid is