Which metal is extracted from seawater?
1). Potassium
2). Magnesium
3). Aluminium
4). Beryllium
Cooking gas is a mixture of
1). methane and ethylene
2). carbon dioxide and oxygen
3). butane and propane
4). carbon monoxide and carbon dioxide
Hard steel contains
1). 2 to 5 per cent carbon
2). 5 to 5 per cent carbon
3). 1 to 4 per cent carbon
4). 01 to 04 per cent carbon
Beryllium Sulphate is less soluble in water due to ?
1). High inflammable energy
2). Low Energy of dissociation
3). Low inflammable energy
4). ionic band
Which of the following is a natural dye ?
1). Crystal violet
2). Aniline blue
3). Alizarin
4). Phenolphthalein