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Which of the following elements is obtained from sea weeds? 1 Argon 2 Sulpur 3 Vanadium 4 Iodine
1 6386The 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 10004The property of a substance to absorb moisture from the air on exposure is called 1 Osmosis 2 Dessication 3 Efflorescence 4 Deliquescence
3 17777Which gas is used for preparation of soda water? 1 Ammonia 2 carbon dioxide 3 Hydrogen 4 Nitric oxide
7 24387Which of the following minerals has the lower numerical hardness value? 1 Talc 2 Gypsum 3 Apatite 4 Topaz
3 8300Brass 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 17393Quartz crystals normally used in quartz clocks etc. is chemically 1 Sodium silicate 2 Germanium oxide 3 Silicon dioxide 4 None of these
1 12075Bell metal is an alloy of 1 Brass an nickel 2 Zinc and copper 3 Tin and copper 4 None of these
1 9528The high-temperature superconductors are 1 Metal alloys 2 Ceramic oxides 3 Inorganic polymers 4 Pure rare earth metals
1 3691Which of the following are the ingredients of gun metal? 1 Iron, Tin 2 Copper, Tin 3 Iron, Brass, Tin 4 Iron, Zinc, Titanium
2 12108The 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 7980The gas that usually causes explosions in coal mines is 1 Hydrogen 2 Carbon monoxide 3 Air 4 Methane
8 14568In fireworks, the green flame is produced because of 1 Mercury 2 Sodium 3 Potassium 4 Barium
1 12624The element required for solar energy conversion is 1 Germanium 2 Silicon 3 Uranium 4 None of these
2 20385Which of the following was to be discovered first in the chromo sphere of the sun? 1 Xenon 2 Helium 3 Neon 4 Krypton
1 3630Post New General Science Questions
Explain how you can integrate Life skills in Science Teaching
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????
When and where was the first experimental atomic explosion took place?
Define science
how is rrb model question paper for science junior engineer gr.II
What is practical frequency. ? How create a frequency band?
what are advantages of excess populatoin?
What are the important factors of cosmic rays?
Which is the first atomic submarine of india?
What is the capacity of arihant’s atomic reactor?
How many naval staffs can occupy arihant?
Explain the Aesthetic and Moral values of Science
172.116.0.0 is a private address - for 120 subnets how many bits does one borrow from the HOST bits
hai i am koti reddy panta.studying 3rd mca.i failed in my degree. shell i consider those subjects as backlogs
The year in which magnetic observations were started in mumbai and thiruvananthapuram?
