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Which of the following elements is obtained from sea weeds? 1 Argon 2 Sulpur 3 Vanadium 4 Iodine
1 6384The 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 10002The property of a substance to absorb moisture from the air on exposure is called 1 Osmosis 2 Dessication 3 Efflorescence 4 Deliquescence
3 17775Which gas is used for preparation of soda water? 1 Ammonia 2 carbon dioxide 3 Hydrogen 4 Nitric oxide
7 24385Which of the following minerals has the lower numerical hardness value? 1 Talc 2 Gypsum 3 Apatite 4 Topaz
3 8294Brass 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 17391Quartz crystals normally used in quartz clocks etc. is chemically 1 Sodium silicate 2 Germanium oxide 3 Silicon dioxide 4 None of these
1 12070Bell metal is an alloy of 1 Brass an nickel 2 Zinc and copper 3 Tin and copper 4 None of these
1 9524The 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 12103The 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 7979The gas that usually causes explosions in coal mines is 1 Hydrogen 2 Carbon monoxide 3 Air 4 Methane
8 14564In 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 20384Which of the following was to be discovered first in the chromo sphere of the sun? 1 Xenon 2 Helium 3 Neon 4 Krypton
1 3627Post New General Science Questions
A man is travelling with the speed of 10m/min across the river to the opposite bank.The river water flows at the speed of 1m/s.Since the water flows at the speed higher than the boatsman, he would definitley reach the opposite river bank in a slant path.What is the length of the path he travelled?. The river is 10m wide. Please give me solution to tha above probelm. Thanks in advance
Which are known as non - luminous irregular nebulae?
Which are the important pulsating nebulae?
Why the diesel generator suddenly increases the output voltage and avr get shorted ... And also increases the load the generator decreases the voltage why ..and also the output power in amps generated in 30 kv diesel generator ..
In which year was the meteorology department founded?
Which is the regulatory authority of atomic energy in india?
What are quasars?
Which is india’s largest nuclear research reactor?
Dear Sir I have got through cable size calculation 10 sq mm cable size of one panel, how i be sure that used cable is 10sqmm. a) By measuring each strand of cpper & multilpy by pye and so on...... or By measuring any one cable core with insulation only.
hai sir pls send me Appsc Assistant Statistical Officer(ASO) previous papers. And Apsrtc MST previous papers. Thanks you sir.
Why we use nhexane inplace of hexane in mobilepase preparation
How long can arihant stay underwater?
Which country has no sunrise?
Why capacitor is not allow dc ?? What the reason?
Who is the oldest cosmonaut?
