Select the odd one out: Strontium – 89, Strontium – 90, Radium – 223, Iodine – 123.
Rock salt is .................... in colour.
During electrolysis of NaCl in the fused state .................... is formed at cathode.
What is the chemical formula of baking soda?
The fixed number of molecules of water in alum is .................... .
Chlorine gas is a strong .................... agent.
Which substance is commonly used as a disinfectant in swimming pools?
The .................... % aqueous solution of salt is called brine.
Salt obtained from certain type of rock is called .................... .
The molten state of NaCl is also called as .................... .
Select the odd one out: Sodium sulphate, Barium chloride, Magnesium sulphate, Bleaching powder.
What is the primary component of natural gas?
What is the chemical name of common salt?
Substance used to make hard water soft is .................... .
Bleaching powder is also called .................... .
Molecular formula for magnesium bromide is .................... .
Bleaching powder is .................... in colour.
Baking soda is
Select the odd one out: Na2CO3.10H2O, Na2SO4.10H2O, BaCl2.2H2O, CaOCl2
Select the odd one out: Soap, Toothpaste, Baking soda, Curd.
Which of the following is a non-metallic element essential for human bone formation?
Select the odd one out: Na2SO4, K3PO4, MgBr2, HCl.
.................... is known as chloride of lime.
NaHCO3 is also called as .................... .
The molecular formula for baking soda is .................... .
Melting point of NaCl is .................... .
Select the odd one out: Boron-10, Iodine – 131, Cobalt – 60, Iodine – 123.
Strong odour in swimming pool is due to .................... .
Soap is .................... in nature.
Which gas is released during the process of photosynthesis?
