Permanent hardness of water may be removed by the addition of 1 Alum 2 Sodium carbonate 3 Lime 4 Potassium permanganate3 11776
The purest form of iron is 1 Steel 2 Cast iron 3 Pig iron 4 Wrought iron21 58536
Of the following metals which, one pollutes the air of a big city? 1 Copper 2 Chromium 3 Lead 4 Cadmium3 13062
The element required for solar energy conversion is 1 Beryllium 2 Silicon 3 Tantalum 4 Ultra pure carbon2 5121
Which of the following is the most stable element? 1 Uranium 2 Hydrogen 3 Oxygen 4 Lead6 11406
Which of the following is a good nuclear fuel? 1 Uranium-238 2 Neptunium-239 3 Thorium-236 4 Plutonium-2398 19722
Which type of fire extinguisher is used for petroleum fire? 1 Foam type 2 Soda acid type 3 Powder type 4 None of these8 20767
Which of the following is commonly called a ‘polyamide’? 1 Rayon 2 Orlon 3 Terylene 4 Nylon3 11569
Rusting of iron involves 1 Oxidation 2 Reduction 3 Displacement 4 Decomposition5 28702
A mixture of water and alcohol can be separated by 1 Filtration 2 Evaporation 3 Distillation 4 Decantation4 24395
Cooking oil can be converted into vegetables ghee by the process of 1 Oxidation 2 Hydrogenation 3 Distillation 4 Crystallization4 17010
The chemical used as a ‘fixer’ in photography is 1 Borax 2 Sodium thiosulphate 3 Sodium sulphate 4 Ammonium persulphate1 10130
Study of life in outer space is called A) Endobiology B) Exobiology C) Entrobiology D) Neobiology15 34400
Activity of an enzyme can be modulated by change of [a] pH [b] Light [c] Humidity [d] Rainfall1 4990
give 3 reasons why capital is referred to as a special liability
Where are the files placed while deploying the resource adapter in web logic server?
Explain About RRC states
What is jsp language?
Does sql allow null values ? Can we use it within where clause ?
How do we print the grid in adobe photoshop?
Name three aquatic mammals?
What is explicit casting?
What are concurrent threads?
What is npm start?
Which pricing is available for power bi from academic, government and non-profit?
Which moon is the only other body in our solar system, besides the earth, that has an atmosphere of mostly nitrogen?
How do minerals turn into rocks?
What is messaging? How does the runtime handle message passing? What is message forwarding?
How to find difference in two configuration files on the same server?