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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 17918Which gas is used for preparation of soda water? 1 Ammonia 2 carbon dioxide 3 Hydrogen 4 Nitric oxide
7 24662Which of the following minerals has the lower numerical hardness value? 1 Talc 2 Gypsum 3 Apatite 4 Topaz
3 8503Brass 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 17521Quartz crystals normally used in quartz clocks etc. is chemically 1 Sodium silicate 2 Germanium oxide 3 Silicon dioxide 4 None of these
1 12161Bell metal is an alloy of 1 Brass an nickel 2 Zinc and copper 3 Tin and copper 4 None of these
1 9622The high-temperature superconductors are 1 Metal alloys 2 Ceramic oxides 3 Inorganic polymers 4 Pure rare earth metals
1 3779Which of the following are the ingredients of gun metal? 1 Iron, Tin 2 Copper, Tin 3 Iron, Brass, Tin 4 Iron, Zinc, Titanium
2 12236The 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 8122The gas that usually causes explosions in coal mines is 1 Hydrogen 2 Carbon monoxide 3 Air 4 Methane
8 14857In fireworks, the green flame is produced because of 1 Mercury 2 Sodium 3 Potassium 4 Barium
1 12723The element required for solar energy conversion is 1 Germanium 2 Silicon 3 Uranium 4 None of these
2 20526Which of the following was to be discovered first in the chromo sphere of the sun? 1 Xenon 2 Helium 3 Neon 4 Krypton
1 3704Which 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 10804
If blue light is combined with green light, what color of light is produced?
Which is india’s primary nuclear facility?
Differentiate between a semi-precious and a precious stone?
Why countdown while firing a aeroplane?
Explain why did the continents spread apart?
The converse of this theorem is: if the sum of the squares of two sides of a triangle equal the square of the third side then the triangle is a right triangle. What is thename of the theorem?
What are respectively some remarkable functions of immunoglobulin?
The probability of getting at least one head in a single throw of three coins is
assuming friction is negligible, if a lever has a mechanical advantage of 5, how much effort in newtons is needed to lift a 10 newton load?
Explain about semisynthetic penicillins and indicate their uses in therapy.
What are the side effect of certain medical treatments which causes dry mouth?
What is the distance of the earth from the moon and the sun?
when we calibrate uv for control of wavelength we scan for 200 to 800 nm but we get the result only for some specific wavelength how we confirm for all other wavelength?
In many arthropods, the segments of the body are grouped into 3 distinct parts. Name all three parts?
the question from which area of physics in ONGC Written examination in physics can we expect more?
