In a water molecule, the ratio of mass of Hydrogen to the mass of Oxygen is always:
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Common salt (NaCl) is made up of
15% of an alloy was silver. If in a quantity of alloy there was 51 g of silver, what was the quantity of the other elements in the alloy?
Non-metal oxides are usually
Which of the following is called Aurum?
Name the Russian chemist who stated that the properties of elements are a periodic function of their atomic masses?
Which one of the following is a bad Thermal Conductor?
Which of the following elements replaced eka-Aluminium in Mendeleev's Periodic table?
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