Which metal in the red hot condition reacts with steam?
Sodium
Potassium
Iron
Calcium
Which is known as universal solvent?
Alcohol
Ether
Water
Kerosene
Which is essential for the growth and development of plants?
Dissolved salts
Rain water
Tap Water
Sea Water
Which is the purest form of water used for qualitative analysis?
Distilled water
Chlorinated water
Pipe borne water
Crystalline hydrated salts which are exposed to the atmosphere loses their moisture partially or completely to the atmosphere and change into the amorphous state is called as
Deliquescent
efflorescent
Hygroscopic
Drying agent
Addition of water to the anhydrous cobalt chloride results______________colour
Blue
Green
Yellow
Pink
The resulting solution obtained when calcium reacts with water is___________in nature
Neutral
Acidity
Alkaline
Pure
The reaction of cold water with_____________is comparitively less exothermic and vigorous
Magnesium
The reaction of cold water with one is highly exothermic and vigorous,
Pottasium
Oxygen
Nitrogen