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Chemical formula for water is

NaAlO2
H2O
Al2O3
CaSiO3
Additional Questions

The gas usually filled in the electric bulb is

Answer

Washing soda is the common name for

Answer

Quartz crystals normally used in quartz clocks etc. is chemically

Answer

Which of the gas is not known as green house gas?

Answer

Bromine is a

Answer

The hardest substance available on earth is

Answer

The variety of coal in which the deposit contains recognisable traces of the original plant material is

Answer

Tetraethyl lead is used as

Answer

Which of the following is used as a lubricant?

Answer

The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is

Answer
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