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The property of a substance to absorb moisture from the air on exposure is called 1 Osmosis 2 Dessication 3 Efflorescence 4 Deliquescence
3 16649Which gas is used for preparation of soda water? 1 Ammonia 2 carbon dioxide 3 Hydrogen 4 Nitric oxide
7 22095Which of the following minerals has the lower numerical hardness value? 1 Talc 2 Gypsum 3 Apatite 4 Topaz
3 7005Brass 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 16626Quartz crystals normally used in quartz clocks etc. is chemically 1 Sodium silicate 2 Germanium oxide 3 Silicon dioxide 4 None of these
1 11447Bell metal is an alloy of 1 Brass an nickel 2 Zinc and copper 3 Tin and copper 4 None of these
1 8915The high-temperature superconductors are 1 Metal alloys 2 Ceramic oxides 3 Inorganic polymers 4 Pure rare earth metals
1 3059Which of the following are the ingredients of gun metal? 1 Iron, Tin 2 Copper, Tin 3 Iron, Brass, Tin 4 Iron, Zinc, Titanium
2 11264The 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 7272The gas that usually causes explosions in coal mines is 1 Hydrogen 2 Carbon monoxide 3 Air 4 Methane
8 12493In fireworks, the green flame is produced because of 1 Mercury 2 Sodium 3 Potassium 4 Barium
1 12012The element required for solar energy conversion is 1 Germanium 2 Silicon 3 Uranium 4 None of these
2 19372Which of the following was to be discovered first in the chromo sphere of the sun? 1 Xenon 2 Helium 3 Neon 4 Krypton
1 3029Which among the following is a positively charged particle emitted by a radioactive element? 1 Alpha ray 2 Beta ray 3 Gamma ray 4 Cathode ray
2 9757
Explain the uses of squid fins?
What is an indicator electrode?
Explain the process of fossil formation?
How many moons does neptune have?
what is the general life cycle of metazoans?
What are the stars?
Which type of immunoglobulin level will increase when an individual is exposed to a parasite?
Explain why does marble rarely contain fossils?
How does Ultraviolet Light Affects Seed Germination and plant growth?
Are all members of transporter families confined to a particular organelle or to the plasma membrane, or are some family members found throughout cellular compartments in eukaryotes?
What other methods are available for staining mycobacteria?
Are VRE clients isolated?
How do you collaborate with physical therapists, occupational therapists, and other healthcare professionals to provide comprehensive care to rheumatology patients?
How to stop proliferation?
what is meant by artwork review and handling procedure with an example?
