What will be colour of the flame when strontium and radium burns
Blue
Crimson red
Apple green
Brick red
Beryllium resembles which one of the element in the 13th group?.
Calcium
Aluminum
Sodium
Germanium
Beryllium resembles which one of the element in the 13th group?
Write the chemical formula for plaster of paris.
CaSO4.H2O
CaCl2. 2H2O
CaSO4
CaSO4. 1/2 H2O
Which alkaline earth metal having highest ionization energy?
Barium
Beryllium
Magnesium
Which is known as quick lime
Calcium carbonate
Calcium oxide
Calcium sulphate
Calcium chloride
Epsom salt is used as
Common salt
Purgatives
Bleaching agent
Drying agent
Second group elements are known as ______________
Alkali Metals
Alkaline earth metals
Transition metals
Inner transition metals
Calcium oxide reacts with chloride to produce______________
Epsom salt
Plaster of paris
Bleaching powder
Quick lime
Write the chemical name of plaster of paris
Calcium Sulphate
Calcium Sulphide Di hydrate
Calcium sulphate hemi hydrate
Calcium Sulphate Hydrate
