Epsom salt is used as
Common salt
Purgatives
Bleaching agent
Drying agent
Name the main ore of magnesium.
Magnesium oxide
Magnesite
Marble
Magnesium carbonate
What will be colour of the flame when strontium and radium burns
Blue
Crimson red
Apple green
Brick red
Magnesium is mainly present in which part of the plant?
Stem
Leaves
Fruits
Roots
Which element has high ionization energy
Beryllium
Barium
Strontium
Radium
What will be the colour of the flame when beryllium and magnesium burns.
Apple greem
Brick Red
Colourless
Write the chemical formula of bleaching powder
Ca(ClO)2
CaSO4.1 / 2 H2O
CaCl2
CaSO4. 2H2O
Which is known as quick lime
Calcium carbonate
Calcium oxide
Calcium sulphate
Calcium chloride
Write the chemical name of plaster of paris
Calcium Sulphate
Calcium Sulphide Di hydrate
Calcium sulphate hemi hydrate
Calcium Sulphate Hydrate
Write the chemical formula for plaster of paris.
CaSO4.H2O
CaCl2. 2H2O
CaSO4
CaSO4. 1/2 H2O
