The metallic constituents of hard water are
1 Magnesium, calcium and tin
2 Iron, tin and calcium
3 Calcium, ,magnesium and iron
4 None of these
- 1 Answers
- 9282 Views
- I also Faced
- E-Mail Answers
WHATE COLOUR OF STAR;SIZE;
Who suggested that most of the mass of the atom is located in the nucleus? 1 Thompson 2 Bohr 3 Rutherford 4 None of these
Where did the largest reflector telescope situated?
NO OF PLANT IN ONGC
Which of the following is used in making artificial sweetener saccharin? 1 Benzene 2 Toluene 3 Phenol 4 Aniline
A mixture of salt and sand can be separated by 1 Sublimation 2 Dissolving in water 3 Gravity separation 4 Dry distillation
What are luminous irregular nebulae?
Nuclear fission is caused by the impact of 1 Proton 2 Electron 3 Neutron 4 None of these
4 Answers Jharkhand Staff Selection Commission JSSC,
Which is the research reactors of bhabha atomic research centre?
Which of the following roofs provide better protection against heat? 1 Cement slab 2 Asbestos sheets 3 Reinforced concrete 4 None of these
The metallic constituents of hard water are 1 Magnesium, calcium and tin 2 Iron, tin and calcium 3 Calcium, ,magnesium and iron 4 None of these
Which of the following substances undergoes chemical change on heating? 1 Sodium chloride 2 Silica 3 Lead nitrate 4 Platinum wire
Biological Sciences 
