Rajasthan Police Constable Model Paper 5

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Question : 95 of 155

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Which of the following chemical compound is commonly known as ‘chile saltpeter?

Sodium hydroxide
Sodium bicarbonate
Sodium carbonate
Sodium Nitrate

Solution:

Sodium Nitrate (NaNO3) is commonly known as ‘chile saltpetre’.
Some common chemical compounds with their common names are:-

ChemicalCompounds	CommonNames	ChemicalFormulas
Sodium Bicarbonate	Baking Soda	$NaHCO_3$
CalciumChlorohypoChlorit	BleachingPowder	$Ca(ClO)_2$
Sodium Hydroxide	Caustic Soda	NaOH
Sodium Carbonate	Washing Soda	$Na_2CO_3 .10 H_2O$
Carbon Dioxide	Dry Ice	$CO_2$
Copper Sulphate	Blue Vitriol	$CuSO_4$
Ferrous Sulphate	Green Vitriol	$FeSO_4$
Sulphuric Acid	Oil of vitriol	$H_2SO_4$
Calcium Oxide	Quick Lime	CaO
Calcium SulphateHemihydrate	Plaster ofPairs	( $CaSO_4 .1/2H_2O$ )
Calcium SulphateDihydrate	Gypsum	$CaSO_4 .2H_2O$
Calcium Hydroxide	Slaked Lime	$Ca(OH)_2$
Chile Saltpeter	Sodiumnitrate	$NaNO_3$
Saltpeter	Potassiumnitrate	$KNO_3$
Muriatic acid	Hydrochloricacid	HCl

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