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