Which of the following elements is obtained from sea weeds? 1 Argon 2 Sulpur 3 Vanadium 4 Iodine
1 5732The 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 9320The property of a substance to absorb moisture from the air on exposure is called 1 Osmosis 2 Dessication 3 Efflorescence 4 Deliquescence
3 16679Which gas is used for preparation of soda water? 1 Ammonia 2 carbon dioxide 3 Hydrogen 4 Nitric oxide
7 22173Which of the following minerals has the lower numerical hardness value? 1 Talc 2 Gypsum 3 Apatite 4 Topaz
3 7046Brass gets discolored in air because of the presence of which of the following gases in air? 1 Carbon dioxide 2 Oxygen 3 Hydrogen sulphide 4 Nitrogen
2 16647Quartz crystals normally used in quartz clocks etc. is chemically 1 Sodium silicate 2 Germanium oxide 3 Silicon dioxide 4 None of these
1 11463Bell metal is an alloy of 1 Brass an nickel 2 Zinc and copper 3 Tin and copper 4 None of these
1 8930The high-temperature superconductors are 1 Metal alloys 2 Ceramic oxides 3 Inorganic polymers 4 Pure rare earth metals
1 3074Which of the following are the ingredients of gun metal? 1 Iron, Tin 2 Copper, Tin 3 Iron, Brass, Tin 4 Iron, Zinc, Titanium
2 11285The variety of coal in which the deposit contains recognizable traces of the orginal plant material is 1 Anthracite 2 Lignite 3 Peat 4 Bitumen
1 7286The gas that usually causes explosions in coal mines is 1 Hydrogen 2 Carbon monoxide 3 Air 4 Methane
8 12544In fireworks, the green flame is produced because of 1 Mercury 2 Sodium 3 Potassium 4 Barium
1 12029The element required for solar energy conversion is 1 Germanium 2 Silicon 3 Uranium 4 None of these
2 19390Which of the following was to be discovered first in the chromo sphere of the sun? 1 Xenon 2 Helium 3 Neon 4 Krypton
1 3043Post New General Science Questions
What is a nuclear triad?
I am a student of class 12. PCMB group. I am not getting admission in any of the medical colleges. And I am not good at math. So what are the options available for me????
hai i am koti reddy panta.studying 3rd mca.i failed in my degree. shell i consider those subjects as backlogs
Explain the role of Science for sustainable Development
What is one light hour?
what is center of gravity?
name all the density all cloth,metals,materials?
how longs & what conditions will a matter, say for example U, after an atomic explosion and was converted completely into energy will again condensed back into a matter named U'
what are advantages of excess populatoin?
Which is india’s largest nuclear research reactor?
Explain the Evolution of Science as a discipline in the Medieval Period
What is length and weight of arihant?
What is the capacity of arihant’s atomic reactor?
Which is the regulatory authority of atomic energy in india?
What is super nova?
